----___these her erasers?----No, they ___.
_______, 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.
—Your watch looks so nice. It must be expensive.—No. I ____ 20 yuan on it.
—How long have you________?—Since two years ago.