Question

【题目】—Dad is sleeping. Please _______ the radio a bit.
—OK. I'll do it.
A.turn on
B.turn up
C.turn down
D.turn off

Answer 1

【答案】C
【解析】句意：— 爸爸在睡觉，请把收音机关小一点。 — 好。我马上做。turn on打开；turn up（把声音）开大；turn down（把声音）关小；turn off关掉。根据句意，故选C。