C1 ........... many books are there? - There are five books.
C2. I am .......... soccer now.
C3. How .......... Mr Ba travel to Ho Chi Minh City?
C4. My sister always ........... her teeth after dinner.
C5. That is Ba .......... father is a doctor.
C6. This is .......... new classmate.
C7. .......... is your classroom? - It is on the fist floor.
C8. Are there ........... trees near your house?
C9. .......... he .......... a truck to Ha Noi at the moment?