题目内容：
请在第__(52)__处填上正确答案。
A．if B．as
C．because
D．since
参考答案：【答案仅供学习，请勿对照自行用药等】
答案解析：
单选题：请在第__(52)__处填上正确答案。
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- 题目类型：单选题
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B．as
C．because
D．since
B．as
C．because
D．since
Paragraph 3__________.
Paragraph 3__________.A．Necessity for developing adult education B．Early days of
The earthquake prediction devices developed by Ms. Shaw are
The earthquake prediction devices developed by Ms. Shaw are being widely used in
请在第___________处填上正确答案．
请在第___________处填上正确答案．A．facing B．putting C．keeping D．reducing
That performance was pretty impressive.
That performance was pretty impressive.A．completely B．beautifully C．very D．equal
The odd thing was that he didn't recognize me.
The odd thing was that he didn't recognize me.A．strange B．real C．whole D．same