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        1. 【題目】So far this year we________ about half of the road and we are sure that it will be finished on time.

          A.have builtB.builtC.buildD.are building

          【答案】A

          【解析】

          句意:今年到目前為止,我們已經(jīng)修建了一半的公路,而且我們確信它能準(zhǔn)時(shí)完工。

          考查現(xiàn)在完成時(shí)的結(jié)構(gòu)和用法。根據(jù)語境表示到目前為止,已經(jīng)修建好了一半,所以用現(xiàn)在完成時(shí),對(duì)現(xiàn)在造成的結(jié)果是已經(jīng)修建好了一半;現(xiàn)在完成時(shí)結(jié)構(gòu)是have/has+動(dòng)詞現(xiàn)在分詞,we是第二人稱復(fù)數(shù)形式,故用have。故選A。

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