问题

Mark needs to learn Chinese _______ his company isopening a branch in Beijing.

A:unless
B:until
C:although
D:since

正确答案是：

同类题型

I had _______ bad headache. Do you have _______ address of People’s Hospital— I’m sorry to hear that. Here is ________ address.

The reform has changed the whole nation. It cannot remain _________ it used to be.

We wonder ___________ quite a number of living things are dying out.

Thank you ever so much for the presentyou brought me.— ____.

_________ does it take –It takes about 30 minutes _________.