Some insects ______ the colour of their surroundings to protect themselves.

 My elder sister ____ me into buying the red mountain bike.

As for how to promote public education, Professor Li gave us a lot of suggestions which _____ reasonable and practical. 

If you have the chance to take charge of the department, the first thing to do is to find out what _______ of you.

Many sharks          fish,other sea animals and smaller sharks,and sometimes they eat people.