the sound of the terrible noise, the little baby burst into tears.
| A．On | B．By | C．At | D．Upon |
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 |