The couple ______at this time yesterday. Nobody knew when they stopped.
| A．heard quarrelling | B．heard to quarrel |
| C．were heard quarrelling | D．was heard to quarrel |
Jane was shy. She would not invite her classmatesspeaking English.
| A．practice | B．practices |
| C．practicing | D．to practice |
—is it the Qmolongma?
—It’s 8,848 meters. It’s very hard to climb the mountain.
| A．How deep | B．How long |
| C．How far | D．How high |
I was very excitingI heard the news that the high-speed rail would be built from Guangzhou to Xiamen.
| A．after | B．when | C．until | D．while |
— I don’t think sixteen- year- oldsto drive.
—I agree. They aren’t serious enough at that age.
| A．can allow | B．need be allowed |
| C．should allow | D．should be allowed |
I hate peoplelaugh at others when they are in trouble.
| A．who | B．whom | C．which | D．they |