It is outer space might provide us with new energy sources.
| A．where | B．which | C．what | D．that |
Hearing the news, he ran out of the room in a hurry，__________ the door __________.
| A．to leave; opening | B．left; opened |
| C．leaving; opened | D．leaving; open |
The drug did not __________ his health. In fact, it seemed to have no __________ at all.
| A．effect; effect | B．effect; affect |
| C．affect; effect | D．affect; affect |
A lot of __________ passengers were sent to hospital immediately when the rescue team arrived.
| A．destroyed | B．injured |
| C．wounded | D．damaged |
I __________ a few words of Greek when I was there last year.
| A．picked up | B．ended up |
| C．poured down | D．came down |
I __________ to be out when you called me this morning.
| A．seemed | B．appeared |
| C．happened | D．thought |