给下列问句选择合适的答语。
（______） 1. Where is he going?
（______） 2. When are you going there?
（______） 3. Will they go there by train?
（______） 4. How do you go there?
（______） 5. May we go there by train?

A．By bus.

B．Yes, they will.

C．Yes, you may.

D．He is going to Changchun.

E．This afternoon.