Many young people took part in _______ trees on Tree Planting Day.

Miss Lin____________ a lot of work for the poor area since 2010.

Did you see a girl in white pass by justnow—No, sir. I _____________ a newspaper.

My parents don’t mind what job I do __ .I am happy

The man who was being followed stopped from time to time ____ he wanted to tie his shoelaces.