几道英语题 急~~~快,下午我就要上课了~~

几道英语题 急~~~快,下午我就要上课了~~
将下列名词变为复数形式.
1.mechanic________ 2.morning________
改错题.
1.I gain valuabie knowledges of English in this college.
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2.I have several coats,but only one teousers.
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3.The new machinery are not very modern.
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4.Many a student have nore than one book.
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5.Is there any police around?
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6.The good news are always in this program.
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7.There are five woman mayor in this country.
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8.The first two questions are rather difficult,but the rest is easy.
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