________ is of no concern to us.
#93464
A
It rain or not
B
If or not it rains
C
Whether it rains or not
D
Will it rain or not
推荐题目
______ is the richest man in our city?
#91890
A
Whom do you think
B
Who do you think
C
Do you think who
D
Who you think
He's late, __is often the case. 
#92571
A
as
B
what
C
it
D
this