【单选题】— ? — They're fine, thank you. [ ]
D.
How are your mother and father
【简答题】看图补全对话。 Tom: Hello, this is Tom speaking. Grandma: Hi, Tom, this is grandma. What is your mother doing? Tom: My mother is c_____________. Grandma: What is your father doing? Tom: My father is s_______...
【简答题】句型转换 1. My mother got them yesterday from the post office. (改为一般疑问句) __________ your mother __________ them yesterday from the post office? 2. I think they would come toni ght. (改为否定句) I __________ th...
【判断题】在对高速及重型机械进行力分析时必须计及其各构件的惯性力。
【单选题】在对高速及重型机械进行力分析时必须计其各构件的()。