--- Which city has ________ population, Shanghai, Hong Kong or Qingdao?--- Shanghai, of course.
--- This math problem is _____ hard for me to understand. Can you help me ?----Sure. It’s my pleasure.
My mother often tells me______the teacher in class.
It’s always busy, so come earlier to get a table.
The expressions they use might whom they are speaking to or how well they know each other.
— It’s not enough an English club. You should also read English newspapers and magazines often. — Thanks for your advice.