题目内容
Forty percent of the class _______ most of the work, and some of the work ______ really difficult.
A. are doing, is B. are doing, are
C. is doing, is D. is doing, are
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题目内容
Forty percent of the class _______ most of the work, and some of the work ______ really difficult.
A. are doing, is B. are doing, are
C. is doing, is D. is doing, are