It was not until he saw his mom _________.

The exam was very easy, wasn’t it —Yes, but not ________ could pass it.

s all that noise about outside—Oh, I forgot to tell you. The road to the railway station ______.

Could you please clean the room— _____ I have to do my homework.

It’s very important for us to save water.—I agree with you. I hope _____ can realize that.