David suddenly realized that the waiter was the same man _____ face he had seen in a painting many years ago．
| A．which | B．that | C．of whom | D．whose |
I’m afraid he’s more of a talker than a doer, which is _____he never finishes anything.
| A．that | B．when | C．where | D．why |
–Have you handed in your schoolwork yet?
--Yes, I have. I guess it ________ now.
| A．has graded | B．is graded | C．is being graded | D．is grading |
He dived in the water and _____ to search for his girlfriend’s lost gold ring.
| A．caught his breath | B．held his breath | C．lost his breath | D．took breath |
The light in his office is out. He_________ left for home.
| A．must have | B．must have been | C．should have | D．should have been |
If you are in a country ______they don’t speak your language，you can show the address to the taxi driver.
| A．which | B．where | C．what | D．when |