－I think students should be allowed _____ homework with friends.
－I disagree. They talk instead of ________ homework.
| A．do, doing |
| B．to do, to do |
| C．to do, doing |
| D．doing, to do |
He stepped into the office, _____down and began to fill in the forms.
| A．sitting | B．to sit |
| C．sat | D．having it |
What he said made the coach of the team .
| A．felt angry | B．feel angrily |
| C．to feel angry | D．angry |
If it tomorrow we’ll go shopping.
| A．doesn’t rain | B．won’t rain |
| C．not rain. | D．isn’t raining. |
Rick has learned a lot about Chinese culture he came to China.
| A．before | B．when | C．until | D．since |
She got up early this morning _________ she could catch the first bus.
| A．because | B．so that |
| C．in order to | D．when |