Question

【题目】________ this is your first visit to New York, you'd better learn some of the customs.

A. Unless B. Until C. Since D. Although

Answer 1

【答案】C

【解析】句意：因为这是你第一次访问纽约，你最好了解一些风俗。A. Unless 除非； B. Until 直到； C. Since 因为； D. Although尽管；根据句意故选C