2．Today，carnival is celebrated by people in Venice for five days in February.

　　3．More roads will be built to solve the problem of traffic jams by the government.

　　4．Active measures have been taken by the government to protect the rare animals.

　　5．The wolves were being hunted everywhere last year.

Ⅲ.单句改错

　　1．The window hasn't cleaned for weeks.

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　　2．Good medicine is tasted bitter.

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　　3．If I invited，I will surely go to his birthday party.

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　　4．I was always made work overtime.

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　　5．Your handwriting should be paid special attention.

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