We have 3 rooms ____________ , but I can’t decide ____________ .
| A．to live, to choose which one | B．lived, choose which one |
| C．to live in, which one to choose | D．live, which one |
--- May we leave the classroom now?
--- No, you ____________ . You ____________ to leave before the bell rings.
| A．mustn’t, are allowed | B．don’t have to, are allowed |
| C．needn’t, aren’t allowed | D．can’t, aren’t allowed |
--- Have you got any books on cooking? I’d like to borrow ____________.
--- OK, here you are.
| A．it | B．that | C．one | D．this |
Hurry up, ____________ you will miss the early bus.
| A．or | B．and | C．if | D．unless |
--- I called Nina several times, but she didn’t answer.
--- Of course, she ____________ London for a visit.
| A．has been to | B．has gone to | C．has been in | D．had gone to |