______ do you call your parents? — Every day. [ ]

_Who is _____ English teacher, Lu Yu? _ Mr Tian teaches _______ English.

What is a cool job? I would say “a good job’ is you would do even if you didn’t get paid for it.

Do you have _____ trouble finishing the work?—The work is not so difficult as you think． We have finished it already．

There will be trees and pollution in the future.