-----Why ________ you come and play basketball with us?-----Because I have lots of homework to do.
—Is the man who is singing your teacher? --- Yes, he teaches _____ physics.
—The fish tastes _______, we have eaten it up. -- It is certain that she cooked it _________.
Kate is a school girl. She got many presents on her _______ birthday.
-- _______ fathers didn’t come to the meeting. Why? ---Because they have gone to Beijing.
Robert is good at playing _____ piano although he is only _____ 11-year-old boy.