Every possible means ____, but none ____ successful．

A. has tried; has proved     B. tried; proves

C. has been tried; proves    D. is being tried; is proved

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目前甲流感正在全世界流行，很多人都可能感染。請你結(jié)合你校的預(yù)防經(jīng)驗(yàn)，以“如何預(yù)防它”為題，提出至少三個方面的應(yīng)對措施。

要求：語句連貫，邏輯合理。字?jǐn)?shù)：120詞左右

提示詞：甲流感A（H1N1) flu；感染: infectors; 口罩：mouth-cover;流鼻涕：sneeze

參考范文：

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14. You ________ your climbing boots. Aren’t you going to climb the mountain with us today?

  A) don’t wear  B) haven’t been wearing  C) haven’t worn   D) aren’t wearing

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Peace and development remain the permanent themes of our times,         the world we live in is anything but quiet.

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. Why don’t you bring ______ to his attention that you are too busy to do it? 

A. this                B. what            C. that             D. it

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. Measles ______ a kind of infectious illness.

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According to the rules of our school, you may leave the classroom ____ you have the teacher’s permission.

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Where is the man ____ I met this morning?

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For thousands of years, man has enjoyed the taste of apples. Apples, which are about 85 percent water, grow almost everywhere in the world but the hottest or coldest areas. Among the leading countries in apple production are China, France and the United States.

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