-There ______ many trees at the foot of the mountain.--But now they are slowly disappearing because of human activities.A.is used toB.used toC.used to be
—Never come late again,_______ ? — Sorry,___________ .
John is always praised _______ one of the top students ______ his efforts.
—Which of these shirts do you like best? — I’ll take . They are all expensive and out of fashion.
This Sunday is an important day for my parents. We’ll celebrate it because they________for twenty years.
we had making snowmen last Sunday!