问题描述：
The birds can catch fish for food in the wetland
=The birds _ _ _ catch fish for food in the wetland.
It's rare for the child to tell a lie.=the child _ _ alie.
The scientist was busy writing a book the whole year.
=The scientist was busy writing a book _(_)_ _.
=The birds _ _ _ catch fish for food in the wetland.
It's rare for the child to tell a lie.=the child _ _ alie.
The scientist was busy writing a book the whole year.
=The scientist was busy writing a book _(_)_ _.
问题解答：
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