—Do you know the girl __________ is standing __________ the tree? — Yes, she is my friend, Zhang Ying.
#37350
A
that, in the front of
B
whom , under
C
who, in front of
D
which, behind
推荐题目
 Could you tell me when ___________?
#37614
A
the train will arrive
B
does the train arrive
C
did the train arrive
D
will the train arrive
It was getting dark, but the little boy didn’t know______________.
#37646
A
who can he ask for help
B
what was wrong with the bike
C
where can he go to mend the bike
D
if he could arrive home on time or not
Although the teacher had told Bob the history of telephone, Bob didn’t know when ____. 
#37382
A
it was invent
B
was it invented
C
it was invented
D
it invented