---Look at that girl! Is that Susan?---No , it _______ be her. She has gone back to her hometown.

----Must he finish the work before supper?----No, he        . He         finish it after supper.

 ----_______I come back before 11:00?----No, you________. But you  ________be back later than lunch-time.

It seemed that our nursery rhymes___ some magic because all the nights I sang them for my daughter, she would listen to them with keen pleasure．

According to the factory safety rules, all accidents _____ be reported to the safety officer.