--- Mary’s got crazy and has been sent to the mental hospital. Did you tell her boss about that?--- Yes, but I _____ her husband first.

— 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.

Being examined twice a year, whether it is a car or a bus or a truck, it is the rule that every driver____ obey in this city.

According to the rules, students ______ get grades not lower than 85% in any subject in order to get the scholarship.

—Dad，can I go to the movies tonight?--Sure，but you__come back home before 9 o’clock.