4题英语题
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4题英语题
4题英语题
4题英语题
must be sung
was made to
must be watered
Is cleaned
1 will be sung
2 was made to
3 must be watered
4 Is,,,cleaned
is cleaned
is cleaned
will be sung
was made to
must be watered
Is cleaned 被动语态的结构是：
be+动词的过去分词
掌握规律就能做了。
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