—The winner is a tall and thin boy with glasses!—Well,it________ be Mike. He doesn’t wear any glasses.
Leaves fall _______piles ________the ground
They think wolves are dangerous _________humans so this leads _______the danger of wolves.
Wolves often work __________a team and they never kill for __________.
We should tell hunters _______tigers.
Yesterday I talked to Amy on the phone and she ______ happy.