---Dad, must we wait until the light becomes green?---Yes,I’m afraid we .That’s the traffic rule.
There’re many trees on ________sides of the river.
He read more books than she ________. So he had more knowledge.
-What does he look like? -________.
-Why don’t we go to the World Park? -_______.
The number of the students in our class is _______than _______in yours.