... rain 20 . Have you heard from John this week, ……?A. haven’t you B. didn’t you C. don’t you D. won’t you 21 . It took weeks to get used to …… someone else around.A. have B. having C. had D. has 22 . ... little D. few 23 . You and I are busy right now, ……?A. aren’t I B. aren’t we C. we aren’t D. aren’t you 24 . You must check …… at least one hour before your flight.A. out B. on C. at D. in 25 . He could ... he 26 . When a plane takes ……, it leaves the ground.A. in B. on C. off D. at 27 . Everyone is responsible for …… own composition.A. his B. her C. A & B are correct D. None is correct 28 ....