I wonder __________ he is crying now.
A. that
B. why
C. how
D. when
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Could you tell me how much __________ to fly to Hainan?
A. do it cost
B. does it cost
C. it cost
D. it costs
Could you show me ___________?
A. how can I get to the station
B. where is the station
C. how I could get to the station
D. how I can reach the station
My physics teacher said that light________faster than sound.
A. travels
B. travel
C. travelled
D. travelling
Lucy said she ____such a beautiful piece of music before.
A. hasn't heard
B. hadn't heard
C. doesn't hear
D. didn't hear
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