I’ve worked with children before so I knew what in my new job.A. expectedB. to expectC. t

问题补充：

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

A. expected

B. to expect

C. to be expected

D. expects

答案：

A. expected

(答案→)B. to expect

C. to be expected

D. expects

解析：

在“疑问词＋不定式”结构中，不定式常用主动形式表示被动意义。what to expect在句子中作know的宾语，故答案为B项。