Emma helped the old lady with her housework once a week last year．（对画线部分提问）
did Emma help the old lady with her housework？
Look! The Smiths （eat） dinner in the kitchen．
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．