—Have you decided _______ to Xi’an? —Yes. I’ll go there by train. It’s much cheaper than by plane.
--- _______ I come back before 6 o’clock? ---No,you _______.But you _______ be back later than 7 o’clock.
---What’s up? ---There is _______ with my computer. It doesn’t work.
---Why not _______ a party this week? ---That’s a good idea.
Playing with _______ robot is _______ unusual experience for me.
There are some children _____ in the room.