题目内容
do a number of simple jobs. They say that in a film or on TV we may see elephants, monkeys, dogs,
bears, or other animals doing a lot of things. If you watch carefully, you may find that those animals are
always given something to eat in return for doing them. The scientists say that many different animals may
be taught to do a number of simple jobs if they will get something in return.
Of course, as we know, dogs can be used to guard a house, and elephants can be used to do some
heavy jobs. And we can also teach animals to work in factories. Apes, for example, have been used in
America to help make cars and scientists believe that these large monkeys may one day get in crops and
even drive trains.
B. they are very heavy, too
C. they are very strong
B. they are very kind and friendly to people
C. they are brave enough to get the stranger and thieves away from house
B. they learn they will get something to eat in return after doing them
C. they are sent to school
B. Quite a few animals
C. Few animals
B. make monkeys guard a house like dogs
C.make bears get in crops
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