The entrance exam is only fifteen days away from now. You will fail the exam ______ you study hard from now on.
| A．if | B．as soon as |
| C．unless | D．although |
Scientists are trying their best to_______ ways to treat the terrible disease caused by Ebola(埃博拉）．
| A．come up with | B．look forward to |
| C．talk about | D．give up |
Now it’s time to have a rest. You’d better _______.
| A．to stop working | B．to give up working |
| C．stop to work | D．give up working |
Could you tell mea meeting in Guangzhou next week?
| A．if there was going to be |
| B．if there is going to be |
| C．whether is there going to be |
| D．whether there is going to have |
Every day, too much water _______ in our school. We should save it.
| A．is wasted | B．wastes |
| C．was wasted | D．wasted |
Dick______ in America, but he has been ______ Chinese food since he moved to China.
| A．used to live; used to eating |
| B．is used to live; used to eat |
| C．is used to live; used to eating |
| D．used to living; used to eat |