改错.1.There are two boys play football in the playground.2.wh

There are two boys playing football in the playground 再问： 五个句子再问： 怎么改 再答： 2。what is the best way to study？ 3。simon was listening to his school friends talking about their families。 4。one day a man got on a train。 5,he will go to shanghai if it doesn't rain。再问： 第一个怎么改 再答： 1。There are two boys playing football in the playground。 2。what is the best way to study？ 3。simon was listening to his school friends talking about their families。 4。one day a man got on a train。 5,he will go to shanghai if it doesn't rain。再问： 第二句没改过 再答： 2。what is the best way to study？再问： 上面是两种答案吗？