新目标版英语七年级上册 Unit 9 My favorite subject is acience.(Section B) 同步练习一、从方框中选择适当的单词完成句子1、从方框中选择适当的单词完成句子useful, fun, busy, hour, lesson(1)—When do you have an art ________?—On Friday afternoon. (2)I have no time. I'm really________. (3)The teacher says ...