—Why does the lake smell terrible? —Because large quantities of water _____.A．ha
题型：不详难度：来源：
—Why does the lake smell terrible?
—Because large quantities of water _____.| A．have polluted. | B．is being polluted. | | C．has been polluted. | D．have been polluted. |
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答案
| D |
解析
试题分析：从问句和答语可知说的是湖的现在的情况，又因为强调污染对湖所产生了一定的结果和影响，故在C，D中选择正确答案。由于主语是quantities，谓语动词要用复数。故选D。
点评：熟练掌握现在完成时和名词的主谓一致中一些需要记忆的知识点。 |
举一反三
On August 12,2009, Typhoon Morakot swept across Taiwan island, _____ a lot of villages _____.| A．leaving; damaged. | B．left; damaged. | | C．left; damaging. | D．leaving; damaging. |
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Professor Li preferred _______ lectures to his students to _______ to meetings on scientific developments.
| A．to give; invite | B．to give; be invited
| C．giving; being invited | D．giving; inviting |
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There, ______ Mrs． Tailor, stretching out to gather her precious eggs laid by her hen．| A．standing on a wooden box was | B．was standing on a wooden box | | C．on a wooden box was standing | D．was on a wooden box standing |
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The old lady who caught a bad cold complained that the doctor was ______ too much for the treatment given to her．| A．paying | B．offering | C．spending | D．charging |
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______ his body and soul to bringing up-to-date technology and International attention to China"s Aids problem, Dr David Ho, born in Taiwan, spent little time with his family．| A．Devoted | B．To devote | C．Being devoted | D．Devoting |
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