7. I when there came a knock at the door.
| A．am going to bed | B．just about to go to bed | C．was about to go to bed | D．have gone to bed |
I know only a little about this matter; you may ask ____ knows better than I.
| A．whoever | B．whomever | C．anyone | D．the one |
This is the school ____ we visited three days ago.
| A．where | B．/ | C．when | D．what |
This is the factory ____ we worked a year ago.
| A．where | B．that | C．which | D．on which |
Nearby were two canoes ____ they had come to the island.
| A．which | B．in which | C．that | D．/ |
Jack is pleased with ____ you have given him and all ____ you have told him.
| A．that, what | B．what, that | C．which, what | D．that, which |