Question

【题目】— How much do you charge for the iPhone?

— Well,it cost me $ 400,but I’ll ________ 20% as it’s no longer new.

A. reduce to B. decrease to

C. knock off D. cut off

Answer 1

【答案】C

【解析】考查短语辨析。A. reduce to减少至；B. decrease to 降低至；C. knock off减少；D. cut off切断，剪下。题意为"因为手机不是新的，所以价格减少20％"。故选C。