To be honest,the scientist to unknown to me.A．referring;beingB．referred;is

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To be honest,the scientist to unknown to me.

A．referring;being	B．referred;is
C．who referred;is	D．referred;being

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解析

略

举一反三

.The typhoon(台风) left,___a lot of damage to the island where we live.

A．did

B．doing

C．to do

D．having done

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He left the place, _____never _______back again.

A．determined; to come	B．being determined; to come
C．determined; coming	D．determining; coming

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The musical “Butterfly” next week is a love story.

A．produced

B．being produced

C．to be produced

D．having been produced

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Yellow Stone National Park, ________in 1872, _________over three million visitors every year, is America’s first and foremost National Park．

A．establishing, attracted	B．having established, attracted
C．established, attracting	D．being established, attracting

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The house _________ now used to be a storeroom.

A．to be torn open.

B．torn down

C．being torn down

D．tearing open

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