21. With the help of Project Hope, many schools_________ in poor areas each year.
A. bulid
B. are built
C. built
D. were built
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22. He_____________to another country when I got there.
A. sent
B. was sent
C. had been sent
D. be sent
23.A man should have both courage __________wisdom.
A. or
B. and
C. but
D. as well as
24. I am cooking _____________he is playing computer games.
A. for
B. or
C. so
D. while
25. Bill runs fast. He won the ____________800-meter race yesterday.
A. boys
B. boy
C. boys'
D. boy's