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问题: 英语

It was ()he was ill that he didn't go to school.
A because
B as
C since

解答:

It was ...that...是强调句
强调句去掉是
Because he was ill he didn't go to school.因为他病了,他才没有去上学.只有这句说得通,而其它不符.because的语气最强烈.
since是持续的,自从他病了,那他一直要持续下去,不恰当. as
用了就不用强调句,表原因