问题
选择题
— Alvin, are you coming with us?
— I'd love to, but something unexpected _____. [ ]
A. has come up
B. was coming up
C. had come up
D. would come up
答案
答案：A
搜题请搜索小程序“爱下问搜题”
— Alvin, are you coming with us?
— I'd love to, but something unexpected _____. [ ]
A. has come up
B. was coming up
C. had come up
D. would come up
答案：A