问题
选择题
—What did Mary do last Sunday?
—She _____ her homework. [ ]
A. did
B. do
C. was doing
D. have done
答案
答案：A
搜题请搜索小程序“爱下问搜题”
—What did Mary do last Sunday?
—She _____ her homework. [ ]
A. did
B. do
C. was doing
D. have done
答案：A