There is no doubt _____ China has made rapid progress in space exploration.
| A． whether | B． that | C． which | D． who |
—Why didn't he attend the meeting yesterday?
—__________ he caught a bad cold and now he is in hospital.
| A．Now that |
| B．Since |
| C．Because |
| D．As |
Many years ago, he dreamed of becoming the first person __________ both South and North Poles.
| A．reaching |
| B．to reach |
| C．to have reached |
| D．having reached |
The __________ of his aim depends largely on himself.
| A．achievement |
| B．agreement |
| C．view |
| D．appreciation |
I was about to go out __________ he came in.
| A．that |
| B．while |
| C．when |
| D．than |
The goods __________ well, so they __________ out quickly.
| A．sell ； are sold |
| B．sells ； are sold |
| C．are sold；sell |
| D．is sold；are sold |