Question

.—_______ John this week?
—Yes.
—Where _______ him?
—In the library.

A．Did you see; did you see	B．Have you seen; did you see
C．Do you see; have you seen	D．Have you seen; have you seen

Answer 1

B

“你本周见John了吗”？强调对现在造成的影响，用现在完成时；“在哪儿见的”强调的为过去的事实，用一般过去时。故选B。