单项选择题

The library needs(), but it'll have to wait until Sunday.

A. cleaning
B. be cleaned
C. clean
D. being cleaned

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单项选择题

We always have () supper at 7 o' clock, we had () good supper yesterday.

A. ×,a
B. a, a
C. ×,×
D. a,×

单项选择题

Wilma became the first American woman to win three Olympic gold medals in track, ()made her mother very proud.

A. it
B. that
C. which
D. this

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