---Who do you think is to blame for the boy’s behavior, Mary or her parents?--- We all think it is Mary as well as her parents that ______ for their son’s bad performance at school.
--- People should spare no efforts to protect the environment. --- ________. Air pollution does harm to our health.
---Have you got everything ready for ___ concert? ---Yes, all is in ___ place.
It’s such a good place___ everyone wants to go and visit ___ it is well-known all over the world.
Miss Li ___as a secretary for five years in the company, and now she is general manager of it.
The result was not as good as expected but the ________ on his face told us that he was still very happy.