17. _________ food you've cooked!
A. How a nice
B. What a nice
C. How nice
D. What nice
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18. So difficult ________ it to live in an English-speaking country that I was determined to learn Englisg well.
A. I have felt
B. have I felt
C. I did feel
D. did I feel
19. _________ can you expect to get a rise.
A. With hard work
B. Although work hard
C. only with hard work
D. Now that he works hard
20. It is __________ it is raining hard that they can't go out for an outing.
A. as
B. since
C. for
D. because
21. ________ got into the room ________ the telephone rang.
A. He hardly had; then
B. Hardly had he; when
C. He had not; than
D. Not had he; when