--Hey, Tony, You look so tired today. ---I __ until 12 o' clock last night for the math test. A. woke up B. stayed up C. grew up
The reporter said that the UFO ________ from north to south when he saw it.
Hurry up, everyone ________ for you.
Trees __________ on Tree Planting Day only.
Sorry, smoking ________ here.
Some rules _________ to stop people from polluting the environment.