Have you met Mr. Li ______?A. justB. ago C. before D. a moment ago
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We _____________ Emma since she was a little girl.A. knowB. had known C. have knownD. knew
In the library, students are required to keep ___________ and move ____________.A. quiet; quietB. quiet; quietlyC. quietly; quiet D. quietly; quietly
He behaved himself ____ a king.
A. as
B. for
C. by
D. like
He saw an apple ______ from the tree.
A. fall
B. falling
C. fell
D. felled