Wearing red makes easy us to take action.
| A．it; for | B．this; of |
| C．that; for | D．it; of |
You had better finish _______ your homework.
| A．do | B．doing | C．to do | D．done |
—May I speak to John?
---Sorry, he Japan. But he in two days.
| A．has been to; will come back | B．has gone to; will come back |
| C．has been in; would come back | D．has gone to; come back |
___________ is better than to receive.
| A．To give | B．Give | C．Have given | D．Giving |
Camels can walk a long way without __________ .
| A．to drink | B．drinks | C．drinking | D．drank |
It Yang Liwei about 21 hours the earth 14 times in his spaceship.
| A．spent; circling | B．took; traveling | C．spent; to travel | D．took; to circle |