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18、With more forests being destroyed, huge quantities of good earth ______ each year.

A. is washing away                                B. is being washed away

C. are washing away                              D. are being washed away

17、What shall we use for power when all the oil in the world has ______?

A. given out                   B. put out                      C. held up                      D. used up

16、The country life he was used to ______ greatly since 1992.

A. change                                              B. has changed  

C. changing                                           D. have changed

15、Modern plastics can ______ very high and very low temperatures.

A. stand                    B. hold          C. carry           D. support

14、He paid for a seat, when he ______ have entered free.

A. could                        B. would                       C. must                D. need

13、---- Have you been to New Zealand?

---- No. I’d like to, ________.

A. too                           B. though                      C. yet                D. either

12、Mr. Smith owns ______ collection of coins than anyone else I have ever met.

A. larger                        B. a larger                      C. the larger                   D. a large

11、It was some time ______ we realized the truth.

A. when                B. until       C. since   D. before

10、I knew ______ John Lennon, but not ______ famous one.

A. 不填；a                   B. a；the           C. 不填；the                D. the；a