—I am thinking of the test tomorrow. I am afraid I cannot pass this time.
—_________! I am sure you will make it.
| A．Go ahead | B．Good luck | C．No problem | D．Cheer up |
It's really very dangerous.One more step，________ the baby will fall into the well.
| A．or | B．so | C．but | D．and |
There is still much to discuss；________，we shall return to this topic at the next meeting.
| A．yet | B．therefore |
| C．otherwise | D．however |
Knowledge is the food of thought ________，as long as it is put in our brain，we will grow wiser.
| A．but | B．when | C．then | D．and |
The number of the employees has grown from 1,000 to 1,200.This means it has risen ________ 20 percent.
| A．at | B．by | C．to | D．with |
—What do you want to do ________ those old boxes?
—To put things in when I move to the new flat.
| A．by | B．for | C．of | D．with |