Thewarmadeimpossibleforthescie

The war made _______ impossible for the scientist to go on with his research.

A．him

B．it

C．this

D．that

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Someone is ringing the doorbell. Go and see _____.

A．who is he

B．who he is

C．who is it

D．who it is

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A．Did I pay how much	B．I paid how much
C．how much did I pay	D．how much I paid

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Her family _____ much larger than mine four years ago. Her family _____ dancing and singing when I came in last night.

A．were; was

B．was; were

C．was; was

D．were; were

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A knife and a fork _____ on the table. A knife and fork _____ on the table.

A．is; is

B．are; are

C．are; is

D．is; are

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Many a professor _____ looking forward to visiting Germany now. Many scientists _____ studied animals and plants in the last two years.

A．is; have

B．is; has

C．are; have

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