Usually, it’s easier to make______ decision than to take _______ action.
| A．a; a | B．/ ;an | C．/ ; / | D．a ;/ |
There's no way of knowing why the man fails，____ he is always hard-working and wise．
| A．when | B．although |
| C．if | D．unless |
--Shanghai Pudong Airport please! I must get there by 7．
--____，but I'll try my best．
| A．No problem | B．All right |
| C．I can't promise | D．I can't do that |
The research group ____ 15 members has made great achievements in recent years．
| A．is made up of | B．makes up |
| C．made up of | D．making up of |
When the star fell ____ the darkness quickly at night，all the people felt it amazing．
| A．down | B．off |
| C．behind | D．through |
It's an either-or situation．You can watch TV or play games，but you can't do ____．
| A．others | B．either |
| C．another | D．both |