选择正确的答案,并将其编号填在括号里。 (_______) 1. You ____ good at music. A.is B. are C. be (_______) 2. _____ often work on holidays. A. Singers B. Doctors C. Teachers (_______) 3. _____ wants to be a doctor. A. YangMing B.Julia C. Sally (_______) 4.____ can make people happy. A.Singers B. Doctors C Teachers (_______) 5 ______ is good at music, A. YangMing B.Julia C. Sally