单项选择题


Why has the captain asked the passengers to keep their seat belts on

A． The plane is going to land.
B． The plane is going to take off
C． The air might become very rough.
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单项选择题
We can infer from the passage that ______.
A．one can work better without breakfast
B．morning diet will do good to your health
C．reducing lunch and supper will help lose weight
D．breakfast is more important than lunch and supper
单项选择题
The most suitable title for this passage would be ______.
A．Places for Disposing Waste
B．Waste Pollution Dangers
C．Ways of Getting Rid of Waste
D．Waste Disposal Problem
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