Mr. Rochester was mad with Jane, for she never answered when _____________.
| A．speaking | B．spoken to | C．spoken | D．speaking to |
．The problem ________now is very important．
| A．being discussed | B．discussed | C．discussing | D．to be discussed |
．— According to my grandma, it is a good idea to eat chicken soup when you have a cold．
—________, scientists agree with her．
| A．Sooner or later | B．Once in a while | C．To be exact | D．Believe it or not |
．— Catherine, I have cleaned the room for you．
— Thanks, but you ________it．I could manage it myself．
| A．needn’t do | B．needn’t have done | C．mustn’t do | D．shouldn’t have done |
．_______from the top of the tower, the north foot of the mountain is a sea of flowers．
| A．Seeing | B．Having seen | C．Seen | D．To see |
．— I’d better__________ now．The water is boiling in the kitchen．
— Good-bye．
| A．ring off | B．ring up | C．ring in | D．ring back |