About 60 percent of the students _____ from the south, the rest of them _____ from the north and foreign countries.
| A．are；is | B．is；are | C．are；are | D．is；is |
—Waiter, ________?
—Wait a minute, sir. That’s $ 80 altogether.
| A．would you charge me | B．how much did we eat |
| C．may I have the bill, please? | D．would you take the money |
To save the drowning child, the boy plunged into the icy water without hesitation, ____ his own safety.
| A．despite of | B．regardless of | C．unaware of | D．because of |
—It’s the office! So you ________ know eating is not allowed here.
—Oh, sorry.
| A．must | B．will | C．may | D．need |
I called Hannah many times yesterday evening, but I couldn’t get through. Her brother ________ on the phone all the time!
| A．was talking | B．has been talking | C．has talked | D．talked |
But for their help, we ________ the program in time.
| A．can not finish | B．will not finish |
| C．had not finished | D．could not have finished |