问题

_____to reach them on the phone, we sent an emailinstead.
A:aa
B:Failed
C:To fail
D:Having failed
B:Failed
C:To fail
D:Having failed
正确答案是:
同类题型
Professor James will give us a lecture on the Western culture, but when and where _____ yet. [ ]
-How much shall I pay for the phone call?-You __________. This is free of charge.
She has received all offer from Berkeley,but I don’t know ____________ she will accept it or not.
I live_________ my family________ a flat_______ a busy street.