(单选题)

—We are worried about Tom. Why hasn’t he come back？
—Don’t worry. He ______ in a traffic jam.

A.might be caught

B.can have been caught

C.may have been caught

D.should have been caught

参考答案：C

参考解析：

考查情态动词+have done的结构。句意：“我们很担心汤姆。为什么他还没回来？”“别担心，他可能遇上了交通堵塞。”might be caught意为“可能遭遇”，表示对现在或将来事实的可能推测；can have been caught意为“过去可能遭遇”，通常用于对过去事实客观可能性的猜测；may/might have caught意为“过去可能遭遇……”，表示对过去事实主观可能性的推测；should have done意为“过去应该做……而事实上没有做”，表示对过去事实的虚拟。根据句意可知，此处表示对过去事实的主观可能性猜测，应填入“may have been caught”。故选C。

知识点：

看好课

—We are worried about Tom. Why hasn’t he come back？—Don’t worry. He ______ in a traffic jam.

—We are worried about Tom. Why hasn’t he come back？
—Don’t worry. He ______ in a traffic jam.