－What was the party like?

－Wonderful. It's years ________ I enjoyed myself so much.

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It was ________ a hundred people looked lost in it.

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After I had walked for six hours ________.

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A．I had been tired out

B．I'll be tired out

C．I was tired out

D．I would have been tired out

It was foolish of you to take a taxi ________ you could easily walk there in five minutes.

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No matter ________ at it, his maths remained weak.

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________ I have nut seen the film, I can't tell you what I think of it.

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I'll never forget the days ________ I lived in the country with the farmers, ________ has a great effect on my life.

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It was not ________ the many blocks he received ________ the lock of fighting spirit ________ led to his losing the game.

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Which of the following is wrong?

[　　]

A．The earth goes round the sun is common knowledge.

B．That the earth goes round the sun is common knowledge.

C．It is common knowledge that the earth goes round the sun.

D．It is true that the earth goes round the sun.

________ the PLA men helped the villagers move to the top of the hill.

[　　]

A．Having flooded the village

B．The village having flooded

C．The village was flooded

D．This village having been flooded