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

The story happened in______.

A． England
B． America
C． Germany

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