The students enjoy English songs after class.
A. practice to sing
B. practicing singing
C. to practice singing
D. to practice to sing
网友回答
A. practice to sing
(答案→)B. practicing singing
C. to practice singing
D. to practice to sing
解析：
试题分析:根据语境可知此句的含义是学生们喜欢在课下练习唱英语歌曲。Enjoy和practice都是实义动词，其后常跟动词的ing的形式，故选B。