The policeman asked the driver _______.
A. when the accident happened
B. when did the accident happen
C. when happened the accident
_______is really difficult for them_______the mountain.
| A．This,climbing | B．This,to climb |
| C．It,to climb | D．It,climbing |
I like skiing better than climbing because I think climbing is ________ skiing.
| A．not as exciting as | B．not as more exciting as |
| C．not as most exciting as | D．more exciting than |
It took me two weeks________reading the novels written by Guo Jingming.
| A．finish | B．to finish |
| C．finishes | D．finishing |
---Tim played the guiter very well in the school talent show.
---I think so.He practices________it every day.
| A．play | B．playing | C．to play | D．plays |
---What about _______ a rest?
---OK!Let’s go for a walk.
| A．to have | B．had | C．have | D．having |