Reciting does much good in language learning and it helps to learn science subjects better.
A. on the contrary
B. in turn
C. by chance
D. in return
网友回答
A. on the contrary
(答案→)B. in turn
C. by chance
D. in return
解析：考察介词短语辨析。A恰恰相反；B依次，轮流；C偶然；D作为回报；句意：在语言学习方面背诵是非常有好处的。它能够帮助更好地学习科学课程。根据句意说明B正确。