问题
选择题
— What were you doing while he _____?
— I _____ in front of the building. [ ]
A. was skating; stood
B. was skating; was standing
C. skated; stood
D. skated; was standing
答案
答案：B
搜题请搜索小程序“爱下问搜题”
— What were you doing while he _____?
— I _____ in front of the building. [ ]
A. was skating; stood
B. was skating; was standing
C. skated; stood
D. skated; was standing
答案：B