单项选择题

The trainer usually gives the animal a piece of candy or fruit （）

A．when it is hungry
B．before it plays a trick
C．when it starts to play a trick
D．after it has done the trick

<上一题目录下一题>

热门试题

单项选择题

This selection says that the Egyptians played （）

A．many different games with balls
B．many different kinds of games
C．only one ball game
D．different games with similar rules

单项选择题

What made scientists think animal can be made to work for us one day（）

A．Animals are very skillful at a circus.
B．They are big and strong.
C．Some animals are as clever as human beings.
D．Animals can be trained because they like to get something as a rewar