This is an unpleasant subject _______ we might argue for a long while.
| A．in which |
| B．with them |
| C．about which |
| D．with it |
Jim passed the final exam, ___________ surprised his classmates and parents.
| A．that | B．which | C．this | D．it |
-You were not in when I came over to your house.
-Oh, I ____________ for a friend from England at the airport.
| A．was waiting | B．had waited | C．am waiting | D．have waited |
He looked around and caught a man __________ his hand into the pocket of a passenger.
| A．put | B．to be putting | C．putting | D．to put |
What a kind teacher. But for his help, I __________ my study.
| A．wouldn’t finish | B．wouldn’t have finished |
| C．shouldn’t have finished | D．mustn’t have finished |
He seems too tired today, and I wonder _________ he got a good sleep last night.
| A．when | B．that | C．if | D．where |