----It’s traditional in China to firecrackers on Spring Festival.----But the serious smog(雾霾)nowadays needs us to stop it.
Why don’t you ________ your book here?
-Why does Mrs. Smith like koalas? - _______ she thinks they are very cute.
-- _______I take some photos in the hall? --Sorry, you_______.
He eats ________ food, so he is ________ fat.
The boy ________have ________ brothers ________ sisters.