—Did you find the missing couple in the mountain yesterday?
—No, but we ________ to get in touch with them ever since.
| A．have tried | B．have been trying | C．had tried | D．had been trying |
Not having promoted the new digital camera successfully, the company should ________ its original marketing methods.
| A．account for | B．reflect on |
| C．work out | D．call up |
—How soon will the candidates get their university admissions?
—It may take three weeks for all the applications to be ________.
| A．withdrawn | B．delivered |
| C．edited | D．processed |
In class the teacher ________ the finance project in simple but vivid language to make it easier for us to understand.
| A．undertook | B．clarified |
| C．approved | D．submitted |
He has three parttime jobs, which ________ about $14 000 a year.
| A．call for | B．bring in |
| C．make up | D．turn out |
More and more foreign countries have been ________ China as a rising power.
| A．looking up | B．looking on |
| C．looking at | D．looking for |