Question

Tom ______ for 5 years, but he has been leading a new life since he was set free.

1. A.
   was put in prison
2. B.
   was in prison
3. C.
   has been put in prison
4. D.
   has been in prison

Answer 1

B
根据he has been leading a new life since he was set free.表明坐监狱是过去的事，要用一般过去时；而要和5 years一段时间连用，要用表状态的be in prison.所以选B。