In our childhood, we were often ______ by Grandma to pay attention to our table manners.

In order to have a good _______ of English, he decided to go abroad for further education.

I begged her not to tell anyone else, and she said she would ________.

We ____ our breath when our teacher read the final list. 

The rise in wood fuel use has _____ the disappearance of forest and the loss of habitats for pandas.