—Boys and girls, believe in yourselves._____ you are, the better grades you’ll get.
A.The more careful
B.The more carefully
C.The most carefully
— Would you like something to drink?
—I’m not thirsty．
| A．No, thanks． | B．Yes, please． |
| C．OK. | D．Some water, please. |
—Have you mended your shoes, Bob？
—Yes, I _________ them twenty minutes ago ．
| A．have mended | B．mend | C．had mended | D．mended |
—Listen! Is Mary singing in the next room?
—No. It _______ be Mary．She has gone to Shanghai for an important meeting.
| A．can’t | B．may not | C．mustn’t | D．needn’t |
．Hurry up, ________ you’ll not catch the first bus.
| A．and | B．or | C．but | D．if |
The old men in hospital ______________.
| A．take good care of | B．take good care |
| C．are taken good care | D．are taken good care of |