He promised to come early but he didn’t until 10 p.m.A. turn downB. turn offC. turn inD.

问题补充：

He promised to come early, but he didn’t until 10 p.m.

A. turn down

B. turn off

C. turn in

D. turn up

答案：

A. turn down

B. turn off

C. turn in

(答案→)D. turn up

解析：turn up 意义为 “出现”