问题
选择题
–What do you think of teaching, Bob?
–I find it fun and challenging. It is a job ___ you are doing something serious but interesting.
A．where
B．Which
C．When
D．that
答案
答案：A
考查定语从句的用法。定语从句主谓宾完整，说明应该填关系副词，先行词为a job，定语从句的意思是在这个工作中……，所以答案用where引导的定语从句。