完形填空。 What 1 this? 2 a backpack. It's my 3 . What's that? It's a 4 . It is 5 computer. Is that a computer, too? 6 . It's a TV set. 7 is my brother. 8 is watching TV. That is my 9 . Her name is 10 . (     )1. A. is (     )2. A. He’s (     )3. A. ruler (     )4. A. TV set (     )5. A. Het (     )6. A. Yes, it is (     )7. A. This (     )8. A. she (     )9. A. brother (     )10. A. Smith B. are B. She’s B. ring B. computer B. She B. Yes, it isn’t B. this B. She B. sister B. Brown C. am C. It’s C. backpack C. case C. her C. No, it is C. it C. He C. father C. Miller D. be D. Is D. book D. pencil D. I D. No, it isn’t D. that D. he D. son D. Gina