You’d better ______ your notes before important examinations.

(单选题)We are not allowed to make any mistakes because ______. (单选题)Tom spent all his time on computer games. ______, he failed (单选题)______ they have done lots of charities, there is still much (单选题)Of all the drinks, tea is ______ in the world. It has a hist (单选题)—______can we keep healthy?— By exercising and eating health (单选题)— Excuse me, ______is the price of the ticket to Beijing?— I (单选题)—Never take chances when driving a car. It’s dangerous.— ___ (单选题)______ of the students are going to visit the museum next we (单选题)They arrived at Japan ______the morning of May 15th. (单选题)Queen Elizabethan ______for seventy years with Prince Philip