Question

【题目】Remove clothing using scissors if necessary ________ it is stuck to the bum.

A. unless B. until

C. although D. because

Answer 1

【答案】A

【解析】

考查状语从句。A. unless除非；B. until直到------为止；C. although尽管；D. because因为。句意：如果有必要，用剪刀把衣服剪下来，除非它粘在屁股上。结合句意可知此处是unless引导的条件状语从句，故选A。