Charles did what he could _____ the servant, although he himself was in danger.
| A．rescue | B．rescued | C．to rescue | D．rescuing |
He glanced through the guide book, ___________ only those pages __________.
| A．reading, concerned | B．to read, concerned |
| C．having read, concerning | D．reading, concerning |
What best quality ______ most people _______ in others is the willingness to admit one’s mistakes.
| A．which, approve | B．/, appreciate |
| C．that, impress | D．where, regard |
Theoretically, a good screwdriver should last a lifetime, but it rarely___________, usually because it is used at one time or another as ___________ some other tool.
| A．should, a favor for | B．should, a lack of |
| C．does, a way of | D．does, a substitute for |
Not until _________________ the better qualities in ourselves ____________ expect to find them in others.
| A．have we developed; can we |
| B．we have developed; that can we |
| C．we have developed; can we |
| D．can we develop; that we will |
— Well, lost again!
— It is not very important . We _____ forget about it. OK?
| A．cannot but | B．have to |
| C．might well | D．might as well |