单项选择题

Passage Two
Questions 29 to 31 are based on the passage you have just heard.

A．The atmosphere surrounding the Earth.
B．Water from oceans and lakes.
C．Energy from the Sun.
D．Greenhouse gases in the sky.
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单项选择题
A．She enjoyed removing others’ drinks.B．She became more and more forgetful.C．She preferred to do everything by herself.D．She wanted to keep her house in good order.
A．She enjoyed removing others’ drinks.
B．She became more and more forgetful.
C．She preferred to do everything by herself.
D．She wanted to keep her house in good order.
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