Landslides have killed 1156 people in northwest China’s Gansu Province so far the total

问题补充：

Landslides have killed 1156 people in northwest China’s Gansu Province so far, the

total death number reported last week.

A. doubled

B. to double

C. doubling

D. having doubled

答案：

A. doubled

B. to double

(答案→)C. doubling

D. having doubled

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