He gave me some very _____ advice on buying a house.
| A．precious | B．worthy | C．precise | D．valuable |
The room _______ very useful when we had visitors.
| A．was proved | B．has been proved |
| C．has proved | D．proved |
I doubt _______ he will win or not.
| A．whether | B．if | C．that | D．when |
-----I’m afraid I’ve broken your chair.
-----.I can easily get it fixed .
| A．You’re welcome. | B．Not at all. |
| C．With pleasure. | D．Never mind. |
It was not until dark ______ he found that it was the correct way to solve the problem.
| A．that | B．what | C．which | D．when |
_______ breaks the law should be punished.
| A．Anyone | B．Those who |
| C．No matter who | D．Anyone who |