They don't know ______their parents are.
A. that
B. what
C. why
D. which
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Please tell me ______what last year.
A. where does your sister work
B. where did your sister work
C. where your sister works
D. where your sister worked
You must remember ________.
A. what your mother said
B. what did your mother say
C. your mother said what
D. what has your mother said
Did you know ____?
A. who he was looking after
B. who was he looking for
C. who he is looking for
D. who he is looking after
HXD3B型机车TCMS 显示屏上，受电弓的预选模式设有 （）类
A. 3
B. 4
C. 5
D. 6
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