The teacher asked Li Hua ．（ ）
A．why is he late for class
B．why he is late for class
C．why was he late for class
D．why he was late for class
The more trees we plant in our city， the （beautiful） Lanzhou will be．
Teenagers should be （allow） to make their own decisions．
After finishing （do）your homework， you can have a good rest．
Though the little boy is young， he can dress （he）without anyone's help．
It is raining outside． Why not （take）an umbrella with you？