问题

We didn’t know you were in trouble at that time, _______ we would have given you a hand

A:therefore
B:unless
C:otherwise
D:so

正确答案是：

同类题型

He is able to ______ new jokes about the people and things around him.[ ]

Words failed to ___________ my feelings the moment I saw my long-lost sister.

What will they do to deal with theaccident— Ten doctors and five nurseshave a medical team and will start outright now.

How do people usually ___________ in theoffice

I don’t think Rose will reply to Alice’s letter.—Me either.But she’s ________ hoping for his reply.