—Are these your sheep ?—No. Mine _____ on grass at the foot of the hill.

The number of people who______ English as a foreign language_______ more than 750 million.

Setting fire to the public buildings ___ highly dangerous and forbidden by law.

They usually have lunch at school, ________?

— How did your students express their thanks to you on Teachers’ Day?— A gift, together with many flowers ____ sent to me by my students.