Make sure to turn off the gas after you take a bath which would cause danger.A. therefor

问题补充：

Make sure to turn off the gas after you take a bath, which would cause danger.

A. therefore

B. somehow

C. otherwise

D. meanwhile

答案：

A. therefore

B. somehow

(答案→)C. otherwise

D. meanwhile

解析：考查副词辨析。A因此；B不知何故；设法；C否则，要不然；D同时；句意：在你洗澡以后务必要把煤气关掉，否则要导致危险。根据句意说明C正确。