单项选择题

At that time she had to take care of her husband while () a part-time job in the evening.

A. did
B. does
C. doing
D. do

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单项选择题
How can MP3 digital music players hinder pacemakers and defibrillators().

A. MP3 players can interfere with heart, pacemakers and defibrillators.
B. The magnets inside the headphones can interfere with pacemakers and defibrillators.
C. The loud music beats pose a threat to pacemakers and defibrillators.
D. MP3 players are placed too close to pacemakers and defibrillators.

单项选择题
8().

A. He goes to street to help those homeless people.
B. What about the other homeless people
C. That’s a lot of money.
D. Yes, he was on the TV news today.

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