题目内容
_______ is mentioned above, the number of the students in senior high school is increasing.
| A.It | B.That | C.What | D.As |
D
考察定语从句。关系代词As指代后面一句话的内容在句中作主语。句意:正如上面所提到的那样,高中学生的数量一直在增加。
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| A.It | B.That | C.What | D.As |