问题
选择题
The doctor has worked with patients of this kind for eight years, so he knows what ________ in his job.
A．expected
B．to be expecting
C．expects
D．to expect
答案
答案：D
本题考查非谓语动词。what to expect 期待什么，expect期待是主语doctor发出的动作，所以不定式要用主动。句意：这名医生跟各种各样的病人打交道九年了，所以他知道工作中会出现什么。