I wonder _________Eddie has gone to Singapore.
#38923
A
how long
B
how often
C
when
D
if
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I didn’t know ______ last year. 
#37019
A
where he lives
B
where does he live
C
where he lived
D
where did he live
Could you tell me_________?
#38075
A
where is the headmaster
B
whose camera it is
C
what Jack was happened
D
how long does it take you to your school?