问题补充：
He is very popular among his students as he always tries to get them in his lectures.
A. interesting
B. interested
C. being interested
D. to interest
答案：
A. interesting
(答案→)B. interested
C. being interested
D. to interest
解析：考查分词作补语。“them 与interest”形成动宾关系所以用过去分词。“他受到同学的欢迎，因为他总是使得学生对他的课感兴趣。”
