【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時完工。

考查現(xiàn)在完成時的結構和用法。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,對現(xiàn)在造成的結果是已經(jīng)修建好了一半;現(xiàn)在完成時結構是have/has+動詞現(xiàn)在分詞,we是第二人稱復數(shù)形式,故用have。故選A

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