Miss Tang teaches _______ and we all like her class．
There’s somebody at the door. Who ____ it be? Is it the postman? — No. It ______ be him. It’s just seven o’clock. It’s too early.
There isinsect on the ground. The child is very interested in it.
Miss Green isn’t in the office. She_______ to the library.
Listen! What’s the noise?— My brother ______ the program of the World Cup in the sitting room.