--What a beautiful school!–Yes. Many trees ________ in our school every year.
--Now most teenagers write to each other not by letter ________online. --Yes, the Internet has become a part of their life.
--This pair of shoes looks very pretty. --Really! Why not ________?
--Attention please, everybody! Please ________. Mr Green will begin his report at once.
-- Is this i-phone _________? --No, it isn’t. I am just thinking of buying________.
The heavy rain stopped the tourists________climbing down the hill.