Question

--- I ______ Tom for three days. Is he ill?
--- I’m afraid so. The doctor said he needed ______.

1. A.
   haven’t seen; to be operated
2. B.
   haven’t seen; to be operated on
3. C.
   didn’t see; operating
4. D.
   haven’t see; operating

Answer 1

B
试题分析：句意：我已经三天不见汤姆了。他病了吗？——恐怕如此。医生说他需要一个手术。结合语境可知上文描述的是现在已经完成的动作，故用现在完成时态。下文主语是动作对象，故用被动语态。Operate不能直接接宾语，需加介词on，故选B。
考点：考查时态及动词。