—The light in his office is still on. Do you know _______?—To prepare for the material(材料) the meeting will need tomorrow, I think.
#36425
A
if he works hard
B
why he stays up so late
C
why is he so busy
D
when he will stop working
推荐题目
We don’t doubt______ he can do a good job of it.
#79096
A
whether
B
that
C
what
D
why
She asked ___________.
#38318
A
if I have already got well
B
whether I had already got well
C
have I ready got well
D
I had already got well
—Could you tell me      after class every day?—He usually plays football with his friends.
#37388
A
what does he do
B
what he does
C
what did he do
D
what he did
---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