问题
lay an important role inmodern life, but they ______ also cause many problems like air pollution
A:It couldn’t be more exciting
B:It couldn’t be more boring
C:It couldn’t be more impressive
D:It couldn’t be more anxious
B:It couldn’t be more boring
C:It couldn’t be more impressive
D:It couldn’t be more anxious
正确答案是：
同类题型
well you drive, you must drive carefully.
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_____ the terrible scene of the traffic accident, the little boy burst out crying[ ]
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