在下列各句的每个空格内填上一个适当的、完整的单词，该词的首字母已给。
【小题1】Tom felt too sleepy to keep aawake/active in history class.
【小题2】I can’t follow you. Can you eexplain it to me again?.
【小题3】Mary is ssupposed to be a good learner. Everyone thinks so.
【小题4】Last month 10 persons were killed in the traffic aaccident hard-working .
【小题5】He never does anything at home. He isn’t a h boy. He’s a lazy boy.
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解析：
【小题1】根据句意和首字母：在历史课上汤姆感到很困不能保持清醒/积极：awake/active
【小题2】考查动词搭配：explain sth to sb向某人解释…
【小题3】考查词组：be supposed to do应当做…
【小题4】in a traffic accident在一场交通事故中
【小题5】从后面的He’s a lazy boy.可知他不是勤奋的孩子： hard-working