We had to wait half an hour we had already booked a table. A.since B.although C.

 We had to wait half an hour _______ we hadalready booked a table.

A.since             B.although          C.until             D.before

试题答案

【答案】

 B

解析:although 引导让步状语从句,意为“虽然”,表示“虽然我们订了座位,但是我们不得不等半小时”。since意为“自从”；until意为“直到”；before意为“在……之前”。