Jack said he _____ here for almost three weeks when I arrived.

Jack said he _____ here for almost three weeks when I arrived.
A、has come
B、had come
C、has been
D、had been
【正确答案】：D
【题目解析】：表示过去发生的、持续到现在的动作或状态，用现在完成时。本题中，主句的整体时态是过去，所以用过去完成时态。