根据句意，写出括号内所给单词的适当形式。1.Lucyisthe
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问题详情：
根据句意，写出括号内所给单词的适当形式。
is the __________(slim) girl in our class.
is __________(possible) for us to sleep with all that noise.
is __________(terrible) ill. We must send him to the hospital at once.
4.__________ (luck), the young mother found the lost boy in the end.
【回答】
mest ssible ibly ily
知识点：构词法
题型：完成句子
