在Cu2S+2Cu2O=6Cu+SO2↑反应中,说法正确的是
The CDs are on sale! Buy one and you get ______ completely free.
I’m sure that your letter will get______ attention. They know you’re waiting for the reply.
All the dishes in this menu, ______ otherwise stated, will serve two to three people.
The children loved their day trip, and they enjoyed the horse ride ______.
I can’t leave. She told me that I ______ stay here until she comes back.