()he ()his homework last night? A.Did和did B.Did和do C.does和did D.Does和do
问题描述:
()he ()his homework last night? A.Did和did B.Did和do C.does和did D.Does和do
答
B
他昨天晚上做作业了吗?
从last night可看出为过去式,所以助动词用过去式did,又因为助动词后面跟动词原形,所以用do.