Don't swim ( )[cross] the river.You can ( )[cross] bridge over there.用方括号内单词的适当形式填空

问题描述:

Don't swim ( )[cross] the river.You can ( )[cross] bridge over there.用方括号内单词的适当形式填空
最好能写上原因^_^

swim 是动词,后面要接介词across,
can后面要接动词原形,即:cross