单项选择题

Dogs can be used to guard a house for his host because______.

A．they are good at running
B．they are very kind and friendly to people
C．they are brave enough to get the strangers(陌生人) and thieves away from the house

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热门试题

单项选择题

Many different animals may be taught to do some simple jobs if______.

A．they have enough food to eat
B．they learn they will get something to eat in return after doing them
C．they are sent to school

单项选择题

The story happened in______.

A．England
B．America
C．Germany