The couple have decided to________buying a car until their economic condition becomes much better.
| A．hold off | B．hold on | C．hold up | D．hold back ． |
Please don’t try to break your word _______everything has been arranged.
| A．since then | B．now that | C．only if | D．so long |
. I never go past that house _______ think of the happy life we had in the old days.
| A．where | B．and | C．that | D．but |
If you want to see the chairman of the department, you’d better make an _______ with his secretary first.
| A．admission | B．agreement | C．appointment | D．assumption |
In the poor parts of America's big cities there is a lot of crime, _____ .
| A．and many more is serious | B．much of it is serious |
| C．and much of it is serious | D．more of it is serious |
---Where did you find your deskmate Tom?
--- It is in the library _______ he studied.
| A．that | B．where | C．which | D．if |