Doctors have been researching      effect stand-up and other forms of comedy have on us.
#78880
A
which
B
what
C
whatever
D
whichever
推荐题目
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
Alice, do you know          tomorrow?
#36464
A
what will we do
B
when we will start
C
where they went
D
how will they go there
— Can you guess _______ ?— I’ve no idea about it.
#38392
A
why was he late
B
when shall we have the sports meeting
C
where was she born
D
how much he paid for the camera
---Could you tell me _______?   ---Of course, last night. 
#38708
A
when you reached China
B
when did you reach China
C
how you came to China
D
how did you come to China