Yesterday I met Amy ________home , and Amy was ________ school at that time.
— Must I come at four o’clock?— Oh, no, you ____.
It’s too cold .You had better ______your coat.
.-Would you mind ____ the window ? --Of course not.I feel hot,too.
You should not eat _______ meat. It can make you fatter.
—He plays basketball so well! Who taught _______?—He learnt it by _______.