(1)So between 1510 and 1514 he worked on it, gradually improving his theory until he felt it was complete.于是在1510-1514年期间他继续从事这项研究.逐步修改他的理论.直到他感到完善时为止. (2)The Christian Church rejected his theory, saying it was against God’s idea.基督教会拒绝接受他的理论.说它违背上帝的思想. 句(1)中gradually improving his theory until he felt it was complete和句(2)saying it was against God’s idea. = and gradually improved his theory until he felt it was complete. =and said it was against God’s idea. 考点例题: , he turned to his father for help. , I didn’t sleep well last night. 查看更多

 

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So between 1510 and 1514 Copernicus worked on it, gradually _____ his theory until he felt it was complete.

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A. to improve
B. to be improving
C. improving
D. improved

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