问题
选择题
---Shall Tom go and play football?
---Not unless he ________ his homework. [ ]
A. has finished
B. finished
C. had finished
D. would finish
答案
答案：A
搜题请搜索小程序“爱下问搜题”
---Shall Tom go and play football?
---Not unless he ________ his homework. [ ]
A. has finished
B. finished
C. had finished
D. would finish
答案：A