— David hasn’t come yet.—I think he will soon, for he means what he says.A. turn onB. tur

— David hasn’t come yet.
—I think he will soon, for he means what he says.
A. turn on
B. turn off
C. turn down
D. turn up

A. turn onB. turn offC. turn down(答案→)D. turn up解析：句意：---大卫还没有来。---我认为他将很快就到，因为他是言出必行的人。A. turn on打开； B. turn off 关掉； C. turn down 拒绝； D. turn up 出现，来到。根据句意故选D。

对的，就是这个意思