谁能帮我看看英语这样写对不对 It is necessary to increase the number of police,because there is only a few police in our cities

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谁能帮我看看英语这样写对不对
It is necessary to increase the number of police,because there is only a few police in our cities

It is necessary to have more policemen, because there is only a few in our city.

It's nessary to increase the amount of police,because there are only a few in my city.

你这句子有错误应该为It is necessary to increase the(改为“a”) number of police,because there is only (only可以省略)a few police(police重复,省略) in our cities(我们的城市,只有一个城市,用单数cit...

It is necessary to increase the number of police,because there is only a few police in my city.