The man the left is Mary’s uncle. A. on B. in C. at
I want to know______do to improve my English.
It's important______the piano well.
一_______ the sports meeting might be put off(推迟). 一Yes, it all depends on the weather.
一Have you mended your bike,Bob? 一Yes,I______it twenty minutes ago.
With the help of the Internet,news can_______every corner of the world.