A giant helium(氦) balloon is telling residents of Paris how good or bad the air
题型:不详难度:来源:
A giant helium(氦) balloon is telling residents of Paris how good or bad the air quality is. When it’s good, the balloon ----measuring 22 meters wide and 32 meters high---shines green. _________, it’s red.A.Though terrible | B.Whenever good | C.If worse | D.When bad |
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答案
D |
解析
考查状语从句的省略。根据句子,可知前后是对比相反情况,所以前面是When it’s good,,后面应是When it is bad,it is 可以省略,所以选D。 |
举一反三
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We will see you again next Saturday. ______, you must rest as much as possible and take good care of yourself.A.However | B.Meanwhile | C.Otherwise | D.Therefore |
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Mother went shopping; __________, I cleaned the house.A.while | B.when | C.however | D.meanwhile |
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