—Do you know ________ the school?—About twenty minutes ago.
#36563
A
when he left
B
when did he leave
C
when he leaves
D
when does he leave
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I wonder _________Eddie has gone to Singapore.
#38923
A
how long
B
how often
C
when
D
if
—Could you please tell me       ?—Sorry, you can turn to Mr. Lee for help.
#39196
A
how long can man live without water
B
whether Yao Ming would play for Rockets or not
C
how I can keep myself safe from the flu
D
why did a serious landslide happen in Zhouqu, Gansu Province 
I didn’t know ______.
#36406
A
when would the train arrive
B
where could I get the book
C
what has been done
D
who left the message