Gases produced by the burning of fossil fuels prevent the heat __ leaving the atmosphere.

The impacts of __ will become more andmore serious.

She is a very good and __ rider.

You must pay attention __ this problem before everything.

The children went from house to house. They played trick or treat.

-> ___ from house to house, the children played trick or treat.

There were at least three __ - grandparents, parents and children - at the wedding.

__ attention to your health. You drink too much soft drink.

__ this warming trend has been going on for a long time, its pace has significantly increased in the last hundred years.

__ by an explosion, the house became a place no one dared to go.

__ exchange can do much to clear up misunderstandings.

"Don Ca Tai Tu" is a popular folk music of __ expression in the South of Vietnam

__ by human activities, climate change is one of serious problem.

We are __ for new jobs this year.

Can you open the door, please? → Would you mind __ the door?