I’ve worked with children before so I know what in my new job.A. expectedB. to expect C.

问题补充：

I’ve worked with children before, so I know what in my new job.

A. expected

B. to expect

C. to be expecting

D. expects

答案：

A. expected

(答案→)B. to expect

C. to be expecting

D. expects

解析：根据上文可知下文叙述的是将要发生的事情,动词不定式可以表示将要发生的事情,故选C.