Mandy. Everything will get better soon.A. Cheer upB. Mix up C. Clean up D. Turn up

问题补充：

, Mandy. Everything will get better soon.

A. Cheer up

B. Mix up

C. Clean up

D. Turn up

答案：

(答案→)A. Cheer up

B. Mix up

C. Clean up

D. Turn up

解析：句意：振作起来，曼蒂。一切都会很快好起来的。Cheer up使振作起来；Mix up混合起来； Clean up打扫；Turn up放大，调高。所以选A。