European football is played in 80 countries, ________ it the most popular sports in the world.

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________ such heavy pollution already, it may now be too late to clear up the river.

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There is a bank ________ the road.

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He narrowly escaped ________ in the fighting.

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It was in 1969 ________ two Americans went to the moon by spaceship.

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It is enough to ________ the tree. Tell him not to ________.

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Is this the house ________ Shakespeare was born?

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There are ________ students in the school. But I don't know ________ the girls among them.

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A．a number of; a number of

B．the number of; the number of

C．a number of; the number of

D．a number; a number

At this moment the bell rang, ________ the end of class.

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Everybody here enjoyed the play, ________ myself.

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