问题
选择题
Hot _______the night air was, we slept deeply because we were so tired after the long journey.
A．although
B．as
C．while
D．however
答案
答案：B
考查状语从句。hot是做从句的表语，提前说明从句时倒装，即as引导的让步状语从句中，要将从句中的表语，状语，或动词原形提到as之前，故选B。