When in trouble, remember to stay calm, and everything will well.
A. turn down
B. turn out
C. turn off
D. turn back
网友回答
A. turn down
(答案→)B. turn out
C. turn off
D. turn back
解析：考查词组：A. turn down声音调低B. turn out结果是，证明是C. turn off关掉D. turn back转身，句意：当有困难的时候，记住要保持冷静，一切最终都会好的。选B。