The workers ________ that the company make an apology to the girl publicly for what they had done to her．

1. A.
   asked
2. B.
   demanded
3. C.
   said
4. D.
   promised

You were rude to your sister, _____you should make an apology to her.

The wrong you’ve done to her is terrible, ____ you should make an apology to her, I think.

A. for which???? B. about which?????? C. of which???? D. with which

You were rude to your sister, _____you should make an apology to her.

A．whom            B．for which          C．for whom         D．which