Whenever he worked until midnight, he        drink some coffee to get refreshed.

To forbid the cheating strictly in this important exam, the authorities have released a rule that students _________ bring any reference books and stationery into their classrooms.

–Look! Someone is cutting a tree on the moon.–It _______ be true, Granny. Our teacher says there is no air there.

We              have hurried all the way to the airport - the flight was called off because of the foggy weather．          

According to the newly-made traffic regulation, whoever drives through red light      be fined at least 200 dollars．