present perfect simple and continuous exercises with answers pdf
Tài liệu ngữ pháp tiếng anh present perfect since and for
Ngày tải lên :
19/08/2013, 14:15
... â 2006 Pearson Education and
its licensors. All rights reserved.
Bill Gates has been CEO of Microsoft since 1975.
Present Perfect
Present Perfect
Use the present perfect to talk about something ... the present perfect with since + point in time
to
show when something started.
future
1975
past
now
since 1975.
has written several books
Present Perfect:
Since and For
Bill Gates and
Microsoft
6
... Perfect
Use the present perfect to talk about something that
began in the past and continues into the present
(and
may continue into the future).
future
1975
past
now
since 1975.
has been...
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báo cáo hóa học: " Reaching in reality and virtual reality: a comparison of movement kinematics in healthy subjects and in adults with hemiparesis" pdf
Ngày tải lên :
19/06/2014, 10:20
... subjects (4 males and 4 females; 56.8 ± 17.1
years) and 7 adults with hemiparesis (3 males and 4
females; 48.9 ± 18.6 years) with no prior experience with
VR participated in the study. Potential participants ... in two phases: 1) reaching and
grasping the ball and 2) ball transport and release. For the
first movement phase, 4 temporal and 4 spatial parame-
ters of reaching and grasping were determined. ... reaching and grasping in healthy sub-
jects and in individuals with hemiparesis by comparing
movement kinematics of identical tasks made in a physi-
cal and a virtual environment. Since reaching and...
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Báo cáo hoa học: " Research Article On Connection between Second-Order Delay Differential Equations and Integrodifferential Equations with Delay" pdf
Ngày tải lên :
21/06/2014, 20:20
... Cairo, Egypt, 2007.
8 N. V. Azbelev and P. M. Simonov, Stability of Differential Equations with Aftereffect, vol. 20 of Stability and
Control: Theory, Methods and Applications, Taylor & Francis, ... unrestricted use, distribution, and
reproduction in any medium, provided the original work is properly cited.
The existence and uniqueness of solutions and a representation of solution formulas ... Nonlinear Oscillations, D. Van Nostrand, Princeton, NJ, USA, 1962.
2 L. Berezansky and E. Braverman, “Nonoscillation of a second order linear delay differential equation
with a middle term,” Functional...
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Tài liệu Present perfect continuous & Present perfect continuous and simple pptx
Ngày tải lên :
19/01/2014, 17:20
...
Đừng quấy rầy tôi bây giờ. Tôi đang làm việc.
Present perfect continuous & Present perfect
continuous and simple
Unit 9. Present perfect continuous
A It has been raining. Xem ví dụ sau: ... waiting.
We’ve been waiting for an hour.
Present perfect continuous and simple
Unit 10. Present perfect continuous and simple
A Nghiên cứu ví dụ sau:
Ann’s clothes are covered ... feeling well recently.
George vừa mới cảm thấy khỏe gần đây.
Chúng ta có thể dùng thì present perfect continuous để chỉ những hành động lặp đi lặp lại trong
một khoảng thời gian:
Debbie is...
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Unit 10. Present perfect continuous and simple doc
Ngày tải lên :
22/06/2014, 21:20
...
They’ve played tennis three times this week.
Unit 10. Present perfect continuous and
simple
Unit 10. Present perfect continuous and simple
A Nghiên cứu ví dụ sau:
Ann’s clothes are covered ... trước đây màu trắng. Bây giờ nó màu xanh. Cô ấy đã sơn trần nhà.
Has been painting là thì present perfect continuous (thì hiện tại hoàn thành tiếp
diễn): Ở đây chúng ta quan tâm đến hành động mà ... hoàn tất hay chưa. Ở ví dụ trên, hành động sơn tường chưa kết thúc.
Has painted là thì present perfect simple (thì hiện tại hoàn thành): Ở thì này, điều
quan trọng là sự hoàn thành của hành...
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TChon 14 PRESENT PERFECT WITH SINCE AND FOR.doc
Ngày tải lên :
08/07/2013, 01:27
... Topic4: MY NEIGHBORHOOD
PERIOD 14. PRESENT PERFECT WITH SINCE AND FOR
A. Revision: The Present Perfect Tense
1. Form
- Affirmative: S + has/have +V3/ed….
- ... working here a year ago and still works here.)
- We do not use for + all (all day/all my life etc.):
* I've lived here all my life. (not 'for all my life')
- Since with the point in ... very dirty. We haven't cleaned it …………… ages.
II. Put the verbs in parentheses into the present perfect tense:
1 He (practice)_______________ the piano Since 8 o'clock.
2 I (not meet)...
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TChon 15 PRESENT PERFECT AND PAST SIMPLE TENSE.doc
Ngày tải lên :
08/07/2013, 01:27
... recently, don’t you think?
6 My grandfather died 30 years ago. I (never/meet) him.
4. Fill in the blanks with modals: must - have to - ought to - used to
1. You wash your hands before meals.
2. It’s ... bright red dress and long black stockings. Last year in another play, she had to
wear short socks and a bright, orange-colored dress. If anyone asks her how old she is, she always answers,
“My ... the party?
7. There are many clouds in the sky. It (rain) ….…… ……………………………
6. Read the passage and answer the following questions:
My aunt Nhan is an actress. She must be at least thirty-five....
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TChon 17 PRESENT SIMPLE AND PRESENT PROGRESSIVE WITH FUTURE MEANING.doc
Ngày tải lên :
08/07/2013, 01:27
... of)
3.He was busy yesterday and ……. was I. (too/ either/ so/ neither)
4. What does she look like? - She’s …… (interesting and sense of humor/ generous and helpful/ tall and thin)
5. I received a ...
VI. Choose and underline the best answers: (2ps)
1. You ought ……… the dentist. (go/ to go/ going/goes)
2. Hoa feels sick. She ate too …… candy last night. (much/ many/ a ... Match one in column A with one in column B: (2ps)
A B Keys
1. What are you going to do this afternoon? a. You should wear overcoat. 1 -
2. Would you like to go to the cinema with me? b. I don’t...
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present perfect and present perfect continuous
Ngày tải lên :
02/03/2014, 15:18
... đây, hiện tại
anh ta không nhất thiết phải đang ở Hà nội) .
Present Perfect
(Thì Hiện tại hoàn thành)
and
Present Perfect Continuous
(Thì Hiện tại hoàn thành tiếp diễn)
·Dùng với: now that ... Have you been crying for long
time?
Mắt của em đỏ. Có phải em đã khóc rất lâu không?
Present Perfect Continuous
Công thức:
Subject + have/has + been + V-ing
Trong đó:
Have: dùng với các ... tuy không đề cặp nhưng có thể hiểu là anh
ấy vẫn còn tiếp tục dạy)
Các từ hay đi cùng với Present Perfect
Since / for
Already / Not yet
Ever / never
Now that
Dùng để chỉ một hành động...
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