根据句意，写出括号内所给单词的适当形式。
【小题1】It seemed that there were as many Asians (Asia) as there were Canadians.
【小题2】Dolly is the firstcloned (clone) sheep in the lab.
【小题3】True friendship (friend) is worth more than money.
【小题4】Because of heavy work, many students feel sleepy (sleep) in afternoon classes.
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解析：
【小题1】此题考查名词的数，根据语境可知要用复数形式。
【小题2】此题考查过去分词表示被动。
【小题3】此题考查名词，表示真正的友谊。
【小题4】此题考查短语feel sleepy表示感到困倦