Be careful . You _______ cross the road when the traffic light is red . The traffic is heavy at this time of day .

—Is there a restaurant near here?—Yes, go along this road and turn left at the first crossing. You can see it on your left. You can’t         it.

 Can you hear someone          in the classroom? It is Mary.

--- Smoking and drunkenness (酗酒) are both bad for people' s health.--- Yes, So we should __ cigarettes and alcohol (酒精) .

–It’s dangerous here. We must not let people fall down. --You’re right. Come on!