—Where is Tom? We can’t find him anywhere.
—Perhaps he_____ home.
| A．has gone | B．is going | C．went | D．was going |
The doctors in ORBIS have done ______ an important job ______ the patients are all grateful to them.
| A．too, to | B．so, that | C．such, that | D．as, as |
The old pen is broken, I’d like ______ one to write with.
| A．the other | B．another | C．others | D．the others |
I’m very glad I have my own room in my house. I ______ do what I want in it.
| A．must | B．have to | C．need | D．can |
His Walkman is different from, and it is more expensive.
| A．him | B．mine | C．my | D．her |
-How often does he write emails to his friend?-______.
| A．Once a month | B．In a week | C．For half an hour | D．Last Monday |