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Scientists _______ a lot of experiments on animals, hoping to find and effective way to cure the patients who had AIDS.

A．carried on

B．carried out

C．carried away

D．carried off

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In spite of his disappointment, he _______ a weak smile.

A．confirmed	B．persuaded
C．cancelled	D．managed

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Ms Liu saw a fashion dress in a shop which set her heart racing. However, its price was far beyond her _______.

A．range	B．certainty
C．reach	D．contact

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How did you find out it is my birthday today?
---_______.

A．I mean it

B．A little bird told me

C．It’s a deal

D．Great minds think alike

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When the young man was shown the evidence, he _______ and told everything he had done to the police.

A．broke up	B．broke away
C．broke off	D．broke down

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_______ in the computer game, Peter didn’t notice his father approaching.

A．Being lost	B．Lost
C．Losing	D．To lose

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