问题
选择题
He helped his mother _____ the housework after he finished his homework yesterday. [ ]
A. do
B. clean
C. did
D. cleaned
答案
A
搜题请搜索小程序“爱下问搜题”
He helped his mother _____ the housework after he finished his homework yesterday. [ ]
A. do
B. clean
C. did
D. cleaned
A