His brother often a kite on Sundays.
We will go out for a picnic if it _____tomorrow.
Put it down, Jim. You mustn’t read ______letter.
_______, Coca-Cola began to enter China’s market.
We are doing much better _____English ______our teacher’s help.
—Look! The man at the gate _______be our headmaster. He is always standing there every morning.—No, it_______ be him. He is holding a meeting in the office now.