完形填空。 1 is our classroom. It's 2 nice room. The windows 3 clean 4 the walls are white. There's a big blackboard 5 the front wall. On the back wall there is a map. It's a map 6 China. There 7 fifty small desks and chairs in the room. They're for us students. What's 8 the teacher desk? There are some flowers. 9 are for our teacher. We like 10 . He's a fine teacher. (     )1. A. This (     )2. A. an (     )3. A. am (     )4. A. and (     )5. A. in (     )6. A. for (     )7. A. are (     )8. A. in (     )9. A. There (     )10. A. him B. Those B. a B. is B. or B. on B. in B. is B. on B. We B. he C. That C. the C. are C. but C. under C. of C. am C. next to C. They C. his