XI. There is only one correct sentence among four sentences. Choose the correct one. 1. A. Children can participate in a TV programme for children. B. Children cans participate in a TV programme for children. C. Children can participates in a TV programme for children. D. Children can participate in an TV programme for children. 2. A. Many people with differently skills are working hard to produce programmes for TV. B. Many people with different skills is working hard to produce programmes for TV. C. Many people with different skills are work hard to produce programmes for TV. D. Many people with different skills are working hard to produce programmes for TV. 3. A. What is that TV programme directed by? - By a famous Vietnamese director. B. Who is that TV programme directing by? - By a famous Vietnamese director. C. Who is that TV programme directed by? - By a famous Vietnamese director. D. Who is that TV programme directed by? - By some famous Vietnamese director. 4. A. My brothers often plays badminton in his free time. B. My brother often plays badminton in his free time. C. My brother often play badminton in his free time. D. My brother often plays badminton at his free time. 5. A. How often did you watch football on TV? - Every weekend. B. How often do you watch football on TV? - Every weekend. C. How often do you watching football on TV? - Every weekend. D. How much do you watch football on TV? - Every weekend.