问题

We didn’t know you were in trouble at that time, ________we would have given you a hand
A:while
B:when
C:therefore
D:otherwise
B:when
C:therefore
D:otherwise
正确答案是:
同类题型
There are _________ students in the classroom. Can you tell me where they are
Each different ________of China _______ its own special forms of traditional art.
My friend John insisted that hehad seen ______ alien the day before.
You can find the new hospital ___ the end of the street
I talked with a foreigner for a long time yesterday.—Great! It’s a good _______ to practice English.