It’s going to be some time _____ he sees his father again, _____ business has just been started in Switzerland

You look tired.—- Yeah, I ________ since 4 o’clock.

What do you think of my new skirt, Mary — It’s more beautiful than _________.

34We knew we were getting close to the park____we started seeing the tiger right next to the road

The boy was so tired that he fell asleep _____________ his mother could take off his clothes．