He often helps the students _______ he thinks are not quick at their studies. 
#69855
A
whom
B
who
C
when
D
because
推荐题目
Many experts agree that there is a possibility___ in this area in the following days.
#69074
A
when some more earthquakes may happen
B
that some more earthquakes may happen
C
where may some more earthquakes happen
D
what may some more earthquakes happen
       you don’t like him is none of my business.
#72623
A
What      
B
Who
C
That
D
Whether