说下理由句型转换：To look up the words in a dictionaryis helpful for us.(改为同义句)______is helpful for us ______look up the words in a dictionary.They are too tired to exercise.(同上）They don't exercise because they_____ _____ ___
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说下理由句型转换：To look up the words in a dictionaryis helpful for us.(改为同义句)______is helpful for us ______look up the words in a dictionary.They are too tired to exercise.(同上）They don't exercise because they_____ _____ ___
说下理由
句型转换：
To look up the words in a dictionaryis helpful for us.(改为同义句)
______is helpful for us ______look up the words in a dictionary.
They are too tired to exercise.(同上）
They don't exercise because they_____ _____ _____ _____.
说下理由句型转换：To look up the words in a dictionaryis helpful for us.(改为同义句)______is helpful for us ______look up the words in a dictionary.They are too tired to exercise.(同上）They don't exercise because they_____ _____ ___
1改为做形式主语的句子．It to
2 他们太累了而不能作操．are tired very much
It
to
are tierd very much/are much too tired
^_^数理化王子在此！