—What about the student in your class, Mr. Wang?
—The doctor said that sleep caused him poor memory and poor concentration.
| A．lacking of | B．lacked in | C．lacking | D．lack for |
Whenever a big company ______ a small one, the product almost always gets worse.
| A．gets on with. | B．cuts down | C．takes over | D．puts up with |
In the low latitude area, it is usually very _____ all the year around.
| A．warm | B．hot | C．cold | D．heat |
She ______ her trip to New York because she was ill.
| A．called off | B．closed down. | C．put up | D．went off |
I never expected you to turn ____ at the meeting. I thought you were abroad.
| A．around | B．on | C．in | D．up |
They____________ potatoes in different ways. They can boil them and fry them.
| A．cook | B．eat | C．make | D．take |