The old man never fails to help___ is in need of his help. 
#93702
A
whom
B
who
C
whoever
D
whatever
推荐题目
We are so tired. ______ we could take the day off tomorrow!
#92230
A
Only if
B
What if
C
If only
D
If so
It won’t be long _____ the island ________ to our motherland.
#94692
A
when, returns
B
before, will return
C
since, returns
D
before, returns
John asked Tom ____ give him a lift to the office. 
#93583
A
if he could
B
could you
C
if could he
D
if could