Making friends is sometimes hard _________ when you don’t know what to say.
---You know Jane? ---Yes, it was _____ I surfed the Internet last week.
---I’m wondering why the visitors chose to stay with the host family. --______ real local life.
---How'syour project work going, Jack? ---______. I'm half finished with it.
It’s better to go shopping in the supermarket than ____ home for chat.
I think that’s the only way we can think of ______ the math problem.