More and more people found _________ necessary to have a balanced diet.

—Tina， is this    schoolbag?—Yes，it’s mine.

– What’s your English teacher’s name?-- ________ name is John Smith.

-Hi!A purse is on the ground.Whose is it? --There’s a girl over there.Maybe it’s _________.

You can go to the library with _______ and ______ sister.