Mr. Hall understands that _______ math has always been easy for him, it is not easy for the students. 
#74580
A
unless
B
since
C
although
D
when
推荐题目
I really don’t know ________ I put my wallet after I paid the bill.
#67058
A
where was it
B
it was where that
C
where it was that
D
where was it that
   difficulties we’ll meet,we must finish the work in time.
#71617
A
However
B
Whatever
C
Whichever
D
Wherever
 ______ you may have , you should gather your courage to face the challenge .
#67914
A
However serious a problem
B
Whatever serious a problem
C
However a serious problem
D
No matter how a serious problem