问题标题:
.Everyoneshould__________hisbesttodothingswellEveryoneshould__________hisbesttodothingswell.A.doBtodoCdoesDdoing
问题描述:
.Everyoneshould__________hisbesttodothingswell
Everyoneshould__________hisbesttodothingswell.
A.doBtodoCdoesDdoing
李德一回答:
A.do
should是情态动词,它的后面必须跟动词原形!
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