18. Our headmaster talked to us about how many students there were ______ average in a class in the UK .and in China.
A. on B. at C. in D. to
17. Working in groups, we must discuss what a good poster ______ and how it attracts its viewers.
A. makes up for B. consists of C. donates to D. prepares for
16.How I regret ______that silly mistake again!
A. not to have made B. have made C. having made D. to making
15. The scientist and his achievements ______ you told me about are admired by us all.
A. who B. which C. whom D. that
14. Do you know the boy ______ father I work ?
A. whose B. with his C. with whom D. with whose
13.There is no doubt that the reason ______ he explained to us at the meeting for his carelessness in his work is unreasonable.
A. which B. to which C. why D. for which
12. We had a good laugh over the strange way ______ Matt solved the problem.
A. which B. how C. that D. for which
11. Miss Emily is one of the foreign teachers ______ now teaching in our school .
A. which are B. who are C. who is D. whom is
10. The book _____ is a little dirty is not mine. It belongs to the girl _____next to him.
A. whose cover; sits B. which cover; who sits
C. which the cover; who is sitting D. whose cover; sitting
9. Gone are the days ______we Chinese people used foreign oil.
A. on which B. which C. when D. where