21．--You speak English quite well．

    --                      ．

A．Not at all                                                B．Thank you

C．I don't think so                                        D．N0, it's rather bad．

20．The elephants in India are           the elephants in Africa．

A．cleverer than               B．different from             C．not so clever as

19．In the story,        are able to know people’s voice．

A．elephants                    B．the elephants in Africa     C．the elephants in India

18．It is           for people to catch the elephants in Africa．

A．easy                           B．pleasant                      C．difficult

17．There are            elephants in world．

A．only two kinds of        B．more than two kinds of   C．three kinds of

16．An elephant can see something clearly if          ．

A．it is big enough                     B．it is close to him             C．it is in the daytime

14．What advice was given to the man?

A．He should have an injection．

B．He should have some medicine．

C．He should go out to do some exercise．

13．What did the man prefer to have?

A．An injection．               B．Some medicine．           C．Exercise．

12．How did the man feel that morning?

A．His arms and legs couldn’t move．

B．His whole body felt tired and weak．

C．His whole body felt hot．