English Help quickly!

English Help quickly!
Half of the class__most of the work.The rest____really difficult.
A.have done;is
B.has done;are
C.has;is
D.have done;are
为社么选A is?

心在左边 1年前已收到1个回答举报

q75w7kqfb 幼苗

共回答了21个问题采纳率：95.2% 举报

因为前面的have done 的主语是half of the class,班级一半的人,所用复数,后面说的是the rest of the work,所以用is,要分清楚主语到底是什么.

1年前

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你能帮帮他们吗

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