We have to _________our school trip till next week because of the heavy rain.
| A．put off | B．put on | C．put up | D．put down |
—Do you know _____ ? I'm going to see him. —Sorry, I don't know.
| A．where does Mr. Li live | B．where did Mr. Li live |
| C．where Mr. Li lives | D．where Mr. Li lived |
Let’s ask Mr. Wang for ________ about the earthquake.
| A．an information | B．informations |
| C．some information | D．some informations |
If you don’t know a word, you must in a dictionary.
| A．look it up | B．look up it |
| C．look over it | D．look it out |
is really hard them to climb Mount Huang.
| A．This, to. | B．It, for |
| C．This, for | D．It, to |
You won't pass your exams________ you work harder.
| A．when | B．if | C．unless | D．after |