A doctor can expect _________ at any hour of the day or night．

A.calling

B.to call

C.being called

D.to be called

答案及解析： D

解析：

句子主语是动词不定式动作的承受者，不定式要用被动式，expect to be done表示“期待着……”，强调被动．答案选D.例如：Many primary schools are going to be built this year．许多小学今年要被建立.