18、________ my hometown was a poor and backward area, but great changes ________.

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A．In the past, took place in the past years

B．In the past few years, have taken place in the past

C．In the past twenty years, took place in the past

D．In the past, have taken place in the past twenty years

17、The sports meet that ________ next month has been put off.

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16、They were quarreling. How ________ the quarrel ________?

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15、________ he looks!

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14、The car ________ he bought was too expensive.

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13、He learned well enough to play the piano to the public when he was ________.

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12、Who do you think ________?

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11、The two men looked at ________ as if one didn't know the other.

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10、If I pay off the debt, I will ________ money ________ nobody.

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9、His mother works at the markets ________ sells vegetables and fruits.

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