When I stepped into the classroom, I saw the teacher _____ out the test papers.

_____is too hard _____ a good solution to this problem.

The hotel will ________ breakfast, but we will have to go out for lunch and dinner．

All of us Were＿＿at the ＿＿news.

At present, many people would rather _________ in the country because there is _____ pollution in the city.