The volunteer teachers in the rural area_爱下问搜题

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问题选择题

The volunteer teachers in the rural areas are _______ college students.[ ]

A. mainly

B. nearly

C. clearly

D. freely

答案

答案：A

选择题

_______ being Sunday, the library was closed.

A．That

B．It is

C．It

D．This

填空题

情期受胎率表示（）占（）的百分率。