第8题: [单项选择]{{B}}Questions 11 to 18 are bused on the conversation you have just heard.{{/B}} A. He is a plumber. B. He is an electrician. C. He is a carpenter. D. He is an interior decorator. 参考答案:B 答案解析:[听力原文]
M: The switch in the bathroom is broken and we need a socket for the porch light.
W: Why do
第21题: [单项选择]Since last century, his family ______teachers. A. are B. are being C. have been D. were being 参考答案:C 答案解析:[解析] 本句话翻译为“自从上个世纪开始，他的家里人就一直从事教师行业”，动作从过去发生，一直持续到现在，所以本句是现在完成时，只有C选项是现在完成时的用法，故选C。
