The dog had _____ serious toothache so its owner took it to _____ animal doctor.
English is useful. Let’s try _______ best to learn it well.A. us B. our C. ourselves
Welcome to our restaurant. Please have _______ seat.A. the B. some C. a
Look! Many delicious foods are _______ sale.A. for B. to C. in
A. pork B. worth C. afford
A. king B. knee C. know