—The light in his office is still on. Do you know         ?—In order to prepare for tomorrow’s meeting.
#36919
A
if he works hard
B
why he stays up so late
C
that he is so busy
D
when he will stop working
推荐题目
— Excuse me. Could you tell me __________ some stamps?— Yes. There is a post office on Xinhua Road.
#38166
A
what can I buy
B
what I can buy
C
where can I buy
D
where I can buy
The students want to know ____ 1,600 words in a month. 
#37656
A
how can they remember
B
how they can remember
C
when could they remember
D
when they could remember
---Do you know _____ back tomorrow?-  --Sorry, I don’t know. When he _____ back, I’ll tell you.
#38882
A
when does he come, comes
B
when he comes, will come
C
when he will come, comes
D
when will he come, will come