21、You’ll _______ the department until the end of the year. Next year you will be rearranged.

  A. be attached to       B. be belonged to     C. owe to    D. be addicted to

20、The voyages of travellers before the 17^th century show that they were not ________ the sea even though they didn’t have modern navigational aids.

   A. at the expense of    B. at the risk of       C. in the way of    D. at the mercy of

19、 Jack went to college last year and left his parents ,____________ to return home until he achieves his goal.

  A. determining not   B. not determined   C. not determining  D. determined not

18、 Don’t worry too much about making ___ mistakes. They are ___ natural part of learning.

   A. /: a               B. the;/              C. /; the          D. the; the

17、The volcano erupted violently , yet the village at the foot of it should _________.

A. come through  B. go through      C. get through       D. pass through

16、Although the used car seems in good ____________,it cannot run too fast.

A. state        B. situation        C. condition        D. occasion

15、Try to spend your time just on the things you find_________.

  A. worthing doing them           B. worth being done

  C. worthy to being done           D. worthy of being done

14、The police were seeking more information to find out ______ the rich merchant.

A. who was it that killed              B. who it was that killed

C. it was who killed                   D. who was it killed

13、Not until he called the secretary three times ______ that the manager went to an important meeting.

 A. did he tell     B. he told          C. was he told       D. he was told

12、 ---- You don’t go to that supermarket quite often, do you? 

    ---- No, I only go there ______ because it’s too far away from my house.

A. eventually      B. constantly       C. occasionally      D. frequently