Her teacher helped her so much that she bought him a bea Wap版

试题详情及答案解析

Her teacher helped her so much that she bought him a beautiful pen _________.

A．by turns	B．in return
C．in vain	D．in turn

答案：B

试题分析：考察介词短语辨析。A依次，轮流；B作为回报；C徒劳；D依次，反过来；句意：她的老师对她帮助很多要注意她给他买了一直漂亮的笔作为回报。根据句意可知B正确。
考点：考察介词短语辨析