---- Look! The man standing at the gate ______ be our headmaster.---- No, it _______ be him.He is holding a meeting in the office now.
Can you write to me and tell me ________ your studies?
My mother usually ________ up ________ 7 o’clock.
My work is ________ dangerous.
Elephants like ________ but lions like ________.
Let’s ________ football this Sunday.