Doctors recommend that all children ________ vaccinated against measles(麻疹).
| A．should | B．could be | C．are | D．be |
All people around him like him, for he has a strongof humor.
| A．sense | B．idea | C．feeling | D．thought |
Keep on trying, you will find a way out.
| A．so | B．but | C．or | D．and |
—Would you mind my using your dictionary?
—. Go ahead.
| A．Yes | B．Sure | C．Of course not | D．Not a little |
By the time Billy was 6, hein the sea.
| A．had already swum | B．was already swimming |
| C．has already swum | D．already swam |
It was only 3 hoursthe policeman caught the robber.
| A．before | B．since | C．when | D．that |