It is surprising that Jack, who is only 39 years old, _______ in the field of engineering for 20 years when he entered the company last month.
| A．worked | B．had worked | C．has worked | D．working |
We planned to climb the mountain today, but in such ______ bad weather, it seems out of ______ question.
| A．/; the | B．/; / | C．a; a | D．a; the |
— Do you think we should put an ad in the paper for the lost child?
— Yes, ______.
| A．that’s all right | B．by all means | C．it just depends | D．never mind |
Teachers be sensitive to the development level of each student so as to help them better.
| A．can | B．may | C．are able to | D．need to |
Find ways to praise your children often, you’ll find they will open their hearts to you.
| A．till | B．or | C．and | D．but |
Only when be possible to sign the papers.
| A．does the lawyer come with it | B．the lawyer comes will it |
| C．has the lawyer come it will | D．the lawyer comes it will |