He got good grades in his tests ______his hard work every day.A,because B,because of C,since D.lik
题目
He got good grades in his tests ______his hard work every day.A,because B,because of C,since D.lik
答案
答案：B
because of是复合介词,后接名词（hard work）,而because 是连接,后接句子.
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