I told Sally how to get here, but perhaps I ____ for her.
| A．had to write it out | B．must have written it out |
| C．should have written it out | D．ought to write it out |
When he looked up, he suddenly found himselfby a group of teenagers,
looked at him anxiously.
| A．to be surrounded; which | B．surrounded; who |
| C．be surrounded; who | D．having been surrounded; which |
I really don’t know _________ I had my money stolen.
| A．when was it that | B．that it was when |
| C．where it was that | D．it was where that |
_________ the problem of land erosion getting more serious, the government is searching for a way to deal with it.
| A．As | B．With | C．When | D．Because |
－Mom’s gift? She _______ have chosen a better one for me.
－She must be very happy to know it.
| A．should | B．might | C．couldn’t | D．mustn’t |
Everybody said it was an ideal marriage; no one had ever known ______ couple.
| A．the happier | B．a happier | C．a happy | D．the happiest |