问题描述:
1.The island,joined to the mainland,is easy to go,为什么不能用joining?
2.Sarah pretended to be cheerful,saying nothing about the argument.为什么不能用said?
said不能看作是过去时吗?
2.Sarah pretended to be cheerful,saying nothing about the argument.为什么不能用said?
said不能看作是过去时吗?
问题解答:
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