Here is your ID card.— .

Listen ! Helen is singing in the next room.—It __________ be Helen. She is in Tianjinnow.

It is reported that two schools, ________ are being built in my hometown, will open next year.

There were _____ many people in the zoo _____ it was hard to get through the crowd tosee the animals [ ]

My father used to ______up late, but now he is used to _____up early.