Do you know the boy _____ father is a bus driver?—Yes, he is my friend.[ ]

Dinner is ready. Help yourself! — Wow! It delicious. Could you please tell me how to cook it?

______has the children burdened with too much homework nowadays?

Dream of the Red Chamber is _____ worth _____ because we can learn a lot about the noble families in the feudal society.

What good news! We will have long holiday after the exam.