—Do you know why people set off fireworks ? —Well, in ancient China, people set off fireworks on New Year’s EVE that the loud noise could drive away bad spirits .
It ____ me nearly two hours to finish my homework yesterday.
When the teacher walked into the classroom, the students ____ at once.
He speaks English ____ than any other student in his class.
Liu Xiang is regarded ____ one of the best runners in the world.
____ are you going to be ____ you grow up?