单项选择题

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

A. Because they prevent the bacteria from overgenerating.
B. Because they can keep your hands clean.
C. Because they let other bacteria move in.
D. Because they can help cure some disease.
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单项选择题
A. The policy said that twins must be adopted separately. B. The adopting family only wanted to accept one child. C. Their birth mother asked for separate adoption. D. Some researchers were studying on them.
A. The policy said that twins must be adopted separately.
B. The adopting family only wanted to accept one child.
C. Their birth mother asked for separate adoption.
D. Some researchers were studying on them.
单项选择题
A. Call the police station. B. Get the wallet for the man.C. Show the man her family pictures. D. Ask to see the man’s driver’s license.
A. Call the police station.
B. Get the wallet for the man.
C. Show the man her family pictures.
D. Ask to see the man’s driver’s license.
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