完形填空。 How would you like to go to a school like this one in Oxford, England? There are no formal classes. The students 1 from one group to another when they want to. 2 may find students who are four, fif or six years old all in the same 3 . They work at their own speed. 4 tells them what they should or shouldn't be doing.  The day I 5 , school began at nine. Some students were working 6 a tape recorder and listening to their own voices. Others were watching a TV program 7 physics. A third group was working in the library. I didn't see anybody just sitting doing 8 . Nobody was wasting time. 9 the students taking a break in the cafeteria were having a 10 on politics (政治). (     )1. A. move (     )2. A. You (     )3. A. grade (     )4. A. Somebody (     )5. A. visited (     )6. A. on (     )7. A. in (     )8. A. something (     )9. A. However (     )10. A. drink B. study B. A man B. school B. A teacher B. moved B. with B. according to B. much B. Even B. show C. travel C. He C. class C. Nobody C. studied C. for C. on C. anything C. Also C. debate D. stay D. I D. group D. The group leader D. stayed D. Through D. by D. nothing D. Only D. quarrel