单项选择题

The market for dust masks and air purifiers is（） in Beijing because the capital has been shrouded for several days in thick fog and haze.

A. booming
B. looming
C. dooming
D. zooming

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单项选择题

Gangnam Style , the （） popular song from South Korean recording artist PSY has just become the most watched video on YouTube ever.

A. sanely
B. insanely
C. rationally
D. insatiably

单项选择题

Traditional fairytales are being ditched by parents because they are too （） for their young children, a study found.

A. scarce
B. scary
C. scared
D. scarred

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