27、You know he is not going to let us leave early if we ___ get the work done.

A. can't                B. may not                   C. shouldn't                 D. mustn't

26、Both sides have accused of breaking the contract ___.

A. another             B. the other                  C. neither                     D. each

25、We ___ our new neighbors yet, so we don't know their names.

A. don't meet               B. won't meet               C. haven't met              D. hadn't met

24、The parents suggested ___ in the hotel room but their kids were anxious to camp out during the trip.

A. sleep                B. to sleep                    C. sleeping                   D. having slept

23、These shoes look very good. I wonder ___.

A. how much cost they are                        B. how much do they cost

C. how much they cost                                    D. how much are they cost

22、Some experts think that language learning is much ___ for children as their tongues are more flexible.

A. easy                 B. easier                             C. easily                             D. more easily

21、__ most of the earth’s surface is covered by water, fresh water is very rare and precious.

A. As                   B. Once                       C. If                            D. Although

20、Doris' success lies in the fact ___ she is co-operative and eager to learn from others.

A. which              B. that                         C. when                             D. why

19、Just in front of our house ___ with a history of 1,000 years.

A. does a tall tree stand                                    B. stands a tall tree

C. a tall tree is standing                                    D. a tall tree stands

18、David said that it was because of his strong interest in literature ___ he chose the course.

A. that                  B. what                       C. why                        D. how