While in university, we were offered a number of afterschool activities to _____ our social skills．
| A．create | B．grow | C．develop | D．settle |
I like getting up very early in summer．The morning air is so good ______．
| A．to be breathed | B．to breathe |
| C．breathing | D．being breathed |
I suppose that when I come back in two year’s time all these old houses will ____ down．
| A．have pulled | B．be pulling |
| C．have been pulled | D．be pulled |
I think your health will soon ______ if you have a holiday on the seaside．
| A．give up | B．pick up | C．take up | D．get up |
He kept a little notebook, in which ______ the names and addresses of his friends．
| A．wrote | B．was writing | C．was written | D．were written |
--- How do you deal with the disagreement between the company and the customers?
--- The key __ the problem is to meet the demand__ by the customers．
| A．to solving; making | B．to solve; making |
| C．to solving; made | D．to solve; made |