In crowded places like airports and railway stations, you __________ take care of your luggage.
| A．can | B．may |
| C．must | D．will |
—Do you know why Lisa cried in class？—I don't know and I don't ________.
| A．mind | B．matter |
| C．care | D．count |
Many teens don't get enough sleep because they have too much homework to do, which ________ them up at night.
| A．makes | B．breaks |
| C．turns | D．keeps |
Freddy made up his mind to enjoy his singing and to________ as many happy experiences as he could.
| A．develop | B．accumulate |
| C．calculate | D．process |
The Chinese government has overcome problems of population and economy to ________ its “nine years of compulsory education”．
| A．abolish | B．reserve |
| C．accelerate | D．accomplish |
—How did you find the film The Flowers of War?
—It's very moving. I couldn't ________ my tears.
| A．hold back | B．hold on |
| C．hold up | D．hold out |