判断下列句子是否正确。正确的打“√”,如有错,打"×",写出正确的句子。 (1)I do my homework now. ( ) (2)Zhangpeng is 4 cm tall than Mike. ( ) (3)How do you feel ? I feel sad. ( ) (4)Did she her homework last night ? ( ) (5)My apple is biger than yours. ( ) (6)Lisa likes playing piano. ( ) (7)My hobby is collect stamps. ( ) (8)Do she teach English? ( )