请将以下句子改错，并写出原因1.When he is twenty years old,he will in colle
请将以下句子改错，并写出原因
1.When he is twenty years old,he will in college
2.There has been a lot more pollutions in China in the past 10 years
3.That is the man I am waiting
4.There are a lot of trees on either sides of the street
谢谢啦
1.When he is twenty years old,he will in college
2.There has been a lot more pollutions in China in the past 10 years
3.That is the man I am waiting
4.There are a lot of trees on either sides of the street
谢谢啦
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will be
1年前 追问
2
have been
waiting for
both sides
1 后半句没动词
wait 一定跟for
pollutions复数
both 两边 either 一边
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