--Alice please tell Eric to call me when he back.No problem.A. comeB. comesC. cameD.

问题补充：

--Alice, please tell Eric to call me when he back.

--No problem.

A. come

B. comes

C. came

D. will come

答案：

A. come

(答案→)B. comes

C. came

D. will come

解析：考查时态。“爱丽丝，请转告艾瑞克，让他回来后给我打电话。”“没问题。”when引导的是时间状语从句，从句用一般现在时代替将来时。故选B。