题目内容
A set of keys _____ on the desk. Some boxes _____ on the desk, too.
A. are, are B. is, are
C. is, is D. is, am
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题目内容
A set of keys _____ on the desk. Some boxes _____ on the desk, too.
A. are, are B. is, are
C. is, is D. is, am