He dressed up and went to the party as if ___________.
A. was invited B. had been invited
C. invited D. to be invited
She may have missed the train, in _____ case she won't arrive for another hour.
A. whose B. that C. which D. what
We’ll be free tomorrow，so I suggest ______ to the history museum.
A. to visit B. visiting C. we should visit D. a visit
— I phoned you yesterday morning. A girl answered, but I didn’t recognize the voice.
— Oh, it ____ my younger sister. She was in my room at that moment.
A．must have been B．should have been
C．could have been D．may have been
Not far from the club there was a garden, ____ owner seated in it playing bridge with his children every afternoon.
A. whose B. its C. which D. that
They ______ on the program for almost one week before I joined them, and now we _____on it as no good results have come out so far.
A. had been working; are still working B. had worked; were still working
C. have been working; have worked D. have worked; are still working
