By the end of last week, we __________ a satisfactory solution to the problem.
| A．have found | B．will be finding | C．had found | D．found |
About 60 percent of the students ________ from the south,the rest of them ________ from the north and foreign countries.
| A．are;is | B．are;are | C．is;are | D．is;is |
They were _____ to hear of the news of her father’s death.
| A． shocking | B． shocked |
| C． shock | D． a shock |
I’d rather the money went to a _______cause.
| A．valuable | B．rare | C．worthwhile | D．useful |
Parents need to teach their children how to behave______.
| A．in public | B．in company | C．in peace | D．in trouble |
Helen was fully occupied_____business matters, so we didn’t want to brother her.
| A．for | B．at | C．in | D．with |