13设y=f( )在点x=0处可导,且x=0为f( )的极值点,则f＇( )=

5. “How can Mary get her money back?” “I advised ( ) to the manager.”

4. Many parents allow their children ( ) own decisions.

3. Mr. Smith doesn’t want ( ) what to buy.

2. There was nothing they could do ( ) calmly.

1. “I’m sorry. Were you speaking to me ?” “Yes, I was. Would you please ( ) in this room?”

3.Pessimists warn us not ( ) for pretty colors, since the car will come in gray.

2.The city government must take action ( ) the increasing population.

1.“Where do you suggest going?” “We promised ( ) the children to the West Lake.”

11. The old lade needs ( ) after her shock.

10. “Tom graduated from college at a very young age.”“He ( ) an outstanding student.”