Is that Mary?－No, it _______be her. She has gone to Tokyo.

Where is the School English Speech Contest going to be held tonight?— I’m not sure. Is it in the hall _____ can hold 300 people?

Listen! Is Kate playing the piano in the room? —No. It _________ be her. She has gone to London with her parents.

I’m going to the States for further study. —How long ____ you ___there?

Mr John, would you please speak a little more ________ ?– Sorry ! I thought you could follow me.