He was so deep in thought, thinking of the problem _________he knocked into the tree without noticing it.
| A．when | B．while | C．because | D．that |
— Do you think he can pass the exam?
—____________, because he has spent too much time playing computer games.
| A．I believe not | B．I believe so | C．I don’t believe it | D．I don’t agree with you. |
After ten years of hard work, they at last got _________.
| A．out of debt | B．into debt | C．in debt | D．out of debts |
—Would you like some more chicken?
—No, thanks. I’m ___ a diet and try to ___ weight.
| A．on; lose | B．on; put on | C．in; have | D．in; lose |
________of both sides, the two companies decided to _______ to become more competitive in the global market.
| A．For the benefit; combine | B．In the interest; be combined |
| C．On the basis; combine | D．With the help; be combined |
The letter reminded me _______ the good time we had spent together.
| A．in | B．for | C．of | D．on |