Some students find certain grammar points and structures very difficult; _____, teachers need a reliable source of practice material to get these points across effectively.

     A. however                 B. as a result                  C. even so                  D. what’s more

 The cave is _____to the public, high up the face of a cliff which no one can climb.

     A. inadequate               B. inconvenient              C. impossible              D. inaccessible

We left the small town, _____clearly _____no need to stay.

     A. it; was                    B. it; being                     C. there; was              D. there; being

 We prefer to measure the school’s teaching quality _____how well the graduates develop rather than how many students are admitted to key universities.

     A. in terms of              B. in spite of                  C. in charge of            D. in favor of

 ---How long have you been here?

   ---Only about three minutes. Xiaoming and Mary _____here with me.

     A. walk                       B. have walked               C. had walked             D. walked

 ---Can I get out at noon?

   ---No. The school rules state that no student _____be allowed out at lunchtime, unless he has a request form.

     A. shall                       B. will                           C. must                      D. can

The hole in the ground was three feet deep, making it difficult, if not impossible, _____the bus out.

     A. getting                    B. get                            C. to get                     D. got

All the books in the list, _____otherwise stated, will be available.

     A. as                           B. if                              C. although                 D. unless

 We appeal to all countries to _____cooperation on climate change, food security and the prevention of natural disasters.

     A. build up                  B. put on                       C. show off                D. hold out

No matter what you say of him, I still think much of him, or else I _____ him to do that.

     A. won’t allow                                                 B. hadn’t allowed       

     C. wouldn’t be allowed                                     D. wouldn’t have allowed