单项选择题

Passage One Questions 26 to 29 are based on the passage you have just heard.

A．From rocks in the mountain.
B．From the remains of ancient sea life.
C．From the soil under the sea.
D．From ancient trees.
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单项选择题
A．She should stay up all night to prepare for her exam.B．She’d better have good rest instead.C．She should study in the night and have a rest in the morning before the exam.D．She should sleep early and get up in the morning to study.
A．She should stay up all night to prepare for her exam.
B．She’d better have good rest instead.
C．She should study in the night and have a rest in the morning before the exam.
D．She should sleep early and get up in the morning to study.
单项选择题
A．Whether second hand smoking is liked with cancer.B．Whether active smoking is linked with cancer.C．Whether passive smoking by children is liked with childhood cancers.D．Whether an average degree of passive smoking is harmful.
A．Whether second hand smoking is liked with cancer.
B．Whether active smoking is linked with cancer.
C．Whether passive smoking by children is liked with childhood cancers.
D．Whether an average degree of passive smoking is harmful.
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