The new secretary is a quick, _______ worker, and the boss is quite satisfied with her.

—The guard keeps         watch at the gate.
—So he does. Only those         knows well could be let in.

---Are you ____ about food? 
---No, anything will do.

These experiences ______ me _____ the drug’s harmful effects. 

Miss Green contributed fifty dollars, but she wished she could contribute _____.

—What do you think of the speech given by the CEO from Hongkong?
—Excellent, I have never heard           one before.

Because of the snow , many parts of the countryside are only _____ by helicopter.

Although he is old, he’s very          . However, when he was young, he was very lazy.

Mr. Wang, a(n)_______editor and writer, is going to attend the conference to be held in Beijing next week.

The ______ used ______ to produce a rabbit from his hat.