part Ⅱ vocabulary and structure （30%）

　　directions: in this part, there are 30 incomplete sentences. for each sentence there are four choices marked a, b, c and d . choose the one answer that best completes the sentence. then mark the corresponding letter on the answer sheet with a single line through the center.

　　16. if you go to the movie tonight, so ______ i .

　　a. will b. do c. am d. can

　　17. you don't know about the difficulty i had ______ the work then at all.

　　a. done b. to do c. for doing d. in doing

　　18. ______ is well-known, the environment in china is badly in need of improvement.

　　a. it b. that c. as d. what

　　19. charles babbage is generally considered ______ the first computers.

　　a. to invent b. inventing c. to have invented d. having invented

　　20. with oil prices keeping ______, people are hesitating whether to buy a car or not.

　　a. rising b. arising c. raising d. arousing

　　21. i walked out of the cinema, ______ to return to see the wonderful film the next sunday.

　　a. determine b. being determined c. determined d. to be determined

　　22. we were very disappointed at the ______ to our advertisement, and our products didn't sell well.