Mary and Joy are ____ Class One. They are ____ the USA. A. from; in B. in; from C. to; from D. in; to
I argued _____ my best friend _____ the problem yesterday.
People will live ____________ 200 years old in the future.
I don’t know _________.
Could you tell me _________ the radio without help ?
I don’t know _____ next.