When he looked up, he suddenly found himself by 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
Soccer is the most truly international team sport, but there’s still some question _______ whether it should be called a game or open warfare.
A．due to B．in addition to C．as to D．owing to
