Question

---When ______ and visit our exhibition next month ?
-- -When _______ , I will let you know .

A．will he come ; he will come	B．will he come ; he comes
C．does he come ; he will come	D．does he come ; he comes

Answer 1

B

第一句中的时间状语next month确定了这句的一般将来时的时态，然而第二句是由when引导的时间状语从句，在时间状语从句中只能用一般现在时表示的是一般将来时。