You should be ________ a diet; otherwise you will get fatter and fatter.
| A．at | B．in | C．on | D．with |
He is so smart a student that he can make himself________ in simple English. That’s the reason why we like to talk with him.
| A．understand | B．to understand |
| C．understood | D．understanding |
The manager of the company asked ________.
| A．What is the hero’s name. |
| B．what the hero’s name is |
| C．What was the hero’s name. |
| D．what the hero’s name was |
It is so urgent that I _______for Shanghai tomorrow.
| A．am leaving | B．am going to leave |
| C．will leave | D．shall leave |
Only in this way _______ the solution to the problem.
| A．you can find | B．can you find |
| C．could you find | D．you could find |
Don't forget ______ the light when you leave the office.
| A．switch on | B．switch off |
| C．to switch on | D．to switch off |