单项选择题

A．It can cause flooding annually.
B．It can carry diseases that affect animals.
C．It can introduce too much salt into the soil.
D．It can divert water from important crops.
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单项选择题
A．Very doubtful.B．Quite annoyed.C．Somewhat curious.D．Indifferent.
A．Very doubtful.
B．Quite annoyed.
C．Somewhat curious.
D．Indifferent.
单项选择题
A．The stories probably weren’t true.B．Tom doesn’t usually tell funny stories.C．She’s surprised Tom was so serious last night.D．She wants to know where Tom heard the stories.
A．The stories probably weren’t true.
B．Tom doesn’t usually tell funny stories.
C．She’s surprised Tom was so serious last night.
D．She wants to know where Tom heard the stories.
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