填空题

There are two main reasons ______. (造成淡水资源短缺)

【参考答案】

for the shortage of fresh water
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填空题
to work应改为work
单项选择题
A．He’s already completed the program.B．He doesn’t know the nurse’s phone number.C．He doesn’t have time to call.D．He’d like to get additional information.
A．He’s already completed the program.
B．He doesn’t know the nurse’s phone number.
C．He doesn’t have time to call.
D．He’d like to get additional information.
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