题目内容
() 6. It takes about ten days from the Earth to the Moon rocket.
A. to travel;by B. travelling; on
C. to travel;on D. travelling; by
6.A
练习册系列答案
相关题目
题目内容
() 6. It takes about ten days from the Earth to the Moon rocket.
A. to travel;by B. travelling; on
C. to travel;on D. travelling; by