完形填空。 Jane and John 1 sister and brother. They like music. Jane can play the piano. But she 2 play the violin. John can't play the piano. But he 3 play the violin. Today they 4 to carry a piano to 5 bedroom. 6 piano is heavy (沉). They can't 7 it. 8 parents aren't at home. But they 9 a cousin brother Mike. He is here today. They ask Mike to 10 them. (     )1. A. is (     )2. A. can (     )3. A. can (     )4. A. like (     )5. A. Jane (     )6. A. The (     )7. A. take (     )8. A. Jane’s and John (     )9. A. have (     )10. A. come B. am B. can’t B. can’t B. want B. her B. a B. carry B. Jane and John’s B. like B. go C. are C. doesn’t C. doesn’t C. can C. Jane’s C. / C. help C. They’s C. want C. join