How long does ti take for the sunlight to reach the earth?
How long does ti take for the sunlight to reach the earth?
How long does it take the Earth to travel once around the Su
How long does it take the Earth to turn once on its axis(轴)?
How long does it take the Earth to turn once on its axis(
how long does it take the earth to turn once on its axis?
How long does it take to you to the school?
How long does it take he to------ to the office----- ------
how long does it take for light to travel across the diamete
How often does it take the earth the earth to move around th
How long does it take [run]to the subway station
how long does the trip take
how long does it take you to do the work同义句 how long --- you