—________ so many countries, you must be able to speak several different languages.
—I wish I could, but English is the only one I can speak.
| A．Visiting | B．To visit |
| C．To have visited | D．Having visited |
_______environmental issues, the government will enforce existing regulations.
| A．Regards | B．As | C．For | D．As regards |
Eliza remembers everything exactly as if it _________ yesterday.
| A．was happening | B．happens | C．has happened | D．happened |
——Do you think it necessary that he ________ to Miami but to New York?
——I agree， but the problem is ________ he has refused to.
| A．will not be sent; that |
| B．not be sent; that |
| C．should not be sent;what |
| D．should not send; what |
I told your friend how to get to the hotel， but I perhaps I __________ have driven her there.
| A．could | B．must | C．might | D．should |
——My cat’s really fat.
——You____________have given her so much food.
| A．wouldn’t | B．couldn’t |
| C．shouldn’t | D．mustn’t |