Recently the Ministry of Environmental Protection issued a circular saying that China may adopt flexible working hours and stop school classes_____the highest air pollution warnings.
A.for fear of | B.in terms of | C.on top of | D.in case of |
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Recently the Ministry of Environmental Protection issued a circular saying that China may adopt flexible working hours and stop school classes_____the highest air pollution warnings.
A.for fear of | B.in terms of | C.on top of | D.in case of |
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