题目

—Is this a music room? ( )— ________A.Yes, this isn't. B.Yes, it is. C.Yes, they are. 答案：【答案】B【解析】句意：—这是音乐教室吗？—是的，它是。Is开头的一般疑问句，肯定回答是Yes, 主语+is. 排除A；问句主语是this，答语主语要用it代替。故选B。解释下列词语的含义。 ①乾坤：___________________________________________ ②酝酿：___________________________________________  ③扭转乾坤：_______________________________________   ④不同凡响：_______________________________________