Hot _______ the night air was, we slept deeply because we were so tired after the long journey. 
#67722
A
although
B
however
C
while
D
as
推荐题目
This is the book _____ the teacher spoke in class.
#70184
A
which
B
that
C
of which
D
of that
_____ this instrument should have put its work permit number on the box.
#73281
A
Who checked
B
Whoever inspected
C
No matter who examined
D
Those who estimates