The experiment is of particular importance.　　　　—I see. We will carry on with it ________ we can get enough money.

It is time for class. Let’s stop _______.

A modern city has been built in______ was a small fishingvillage.

35— Have you finished your essay?— Half when you come back

I think students should have mobile phones to calltheir parents. —_____.They often use them to play games instead.