完形填空。 I'm John. This is my room. The TV is 1 the table. The video cassettes 2 in the drawer. Where are 3 pencils?  They 4 on the table. They are in my pencil case. 5 my pencil case?  Oh. 6 in my backpack. Where's my backpack? 7 on the table? No, it isn't. It's on the bed. My alarm clock is on the dresser. My keys and ID cards are 8 to my alarm clock. (     )1. A. in (     )2. A. is (     )3. A. your (     )4. A. are (     )5. A. What's (     )6. A. It's (     )7. A. It is (     )8. A. on B. on B. are B. his B. don't B. Who's B. They're B. Are they B. in C. under C. to C. her C. aren't C. Where're C. It C. Is it C. next D. and D. isn't D. my D. isn't D. Where's D. They D. Is D. at