He is only too ready to help others, seldom, ____, refusing them when they turn to him.
| A．if never | B．if ever | C．if not | D．if any |
You can't work out this problem ___in this way.
| A．rather than | B．other than | C．or rather | D．or else |
I had no idea ____ is better, so I took ____ of them.
| A．what;both | B．what;none | C．which;both | D．which;none |
The headmaster hurried to the concert hall only ___ the speaker ____.
| A．to find;gone | B．to find;left | C．finding;left | D．finding;gone |
The thing that_____ is not whether you fail or not, but whether you try or not.
| A．matters | B．cares | C．minds | D．considers |
_____ is no need to argue again the problem.We settled it at the last meeting.
| A．It | B．What | C．There | D．Which |