This is certainly the case, but ____ it is a mistake or not I don’t know. 
#73119
A
if
B
even though
C
whether
D
that
推荐题目
Not until he left home ______ to know _______ important the family was for him.
#68340
A
did he begin; what
B
had he begin; how
C
did he begin; how
D
had he begin; what
 _______, his idea was accepted by all the people at the meeting.
#67991
A
It might sound strange
B
As it might sound strange
C
As strange it might sound
D
Strange as it might sound
_____ interesting the film is, I won’t waste any time on it. 
#69304
A
No matter
B
Whatever
C
However
D
Whichever