--Could I go skating with you, dad?-- ____. You have to practice piano at home.
—What do you call these animals?—We call them kangaroos. The structure of sentence is .
Wolves will _________ their lives _________ the loss of the trees and forests.
She is a ________girl,and she does everything________.
There will be a heavy storm ___________ this evening.
Today the forests are getting fewer and fewer. We must ______ down too many trees.