You should put a small ___________of salt in a cake.
A. quality B. account C. amount D number
You should have ____ good knowledge of English if you want to find a job here. Because English is the working language in_______ most international trade centers.
| A．不填；the | B．不填；不填 | C．a; 不填 | D．a; the |
With a lot of homework _________, I had to stay at home all day.
| A．done | B．doing | C．to do | D．being done |
The number of workers _______________2000.
| A．has reached | B．have reached | C．is reached | D．has reached to |
The day came finally _____ I was given an opportunity to act in the play.
| A．when | B．in that | C．which | D．in which |
The library from __________we borrow books will be rebuilt next year.
| A．that | B．which | C．where | D．whom |