I couldn't stand ________ waiting.

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To his disappointment, the opinion he had stuck to _______ wrong.

[　　]

A．turned out

B．turning out

C．was turned out

D．to be turned out

_______ you have seen both fighters, ________ will win?

A．Since; do you think who

B．As; who do you think

C．When; whoever

D．Since; who do you think

Yesterday，Mike walked away from the discussion. Otherwise, he _______ something he would regret later.

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Not until all the fish died in the river _________ how serious the pollution was.

[　　]

A．did the villagers realize

B．the villagers realized

C．the villagers did realize

D．didn't the villagers realize

They were told that they should follow that main road _______ they reached the central railway station.

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Would you mind _______ your radio a little, please?

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________, I have to put it away and focus my attention on study this week.

[　　]

A．However the story is amusing

B．No matter amusing the story is

C．However amusing the story is

D．No matter how the story is amusing

In their school, they do not ________ the students according ________ their grades but their behavior.

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(2007·江苏)

With April 18's railway speedup, highway and air transport will have to compete with ________ service for passengers.

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