She ______ the homework yesterday.A.didn't do B.didn't C.doesn't D.doesn't do
问题描述:
She ______ the homework yesterday.A.didn't do B.didn't C.doesn't D.doesn't do
答
选A,是过去式
望采纳。谢谢
答
A.didn't do
答
选A
yesterday为过去式
用did+原形do
答
a
答
A yesterday昨天所以用一般过去时.做作业do homework.所以借助于助动词do的一般过去时did.