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15._____ three influenza type A virus subtypes(子类型) have been found in pigs.

    A.By far         B.As far as        C.So far         D.Till far

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14.Who would you rather ______ you repair your CD player?

    A.help          B.helped         C.helping        D.to help

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13.We decided to take a taxi.Luckily there was _____ waiting.

    A.some          B.another        C.any         D.one

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12.Ted has made up his mind to give it up, but on _____ second thoughts he determined to try______ third time.

    A./ ; a          B./ ; /           C.a ; a         D.the ; a

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11.-Aren’t you cold?

    -____.I’m boiling.

     A.Take it easy.   B.That’s all right.  C.Not a little.     D.Far from it.

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10.-I'm very ________ with my own cooking.It looks nice and smells delicious.

    -Mm, it does have a ________ smell.

    A.pleasant; pleased                  B.pleased; pleased  

    C.pleasant; pleasant                  D.pleased; pleasant

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9.My parents are ________ to live in the countryside,where the air is clean and the vegetables are fresh.

    A.proper         B.satisfying       C.content        D.disappointed

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8.The strike may hold ________ production of cars for several months, ________ a great loss.

    A.out; cause      B.up; causing      C.out; causing     D.up; cause

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7.He apologised to me for his ________ my letter.

    A.delaying answering                B.delay to answer

    C.delaying to answering              D.delaying to answer

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6.After the earthquake, the injured were cared ________in the hospitals or taken by air to the hospitals in the neighbouring cities.

    A.of            B.for            C.after          D.with

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