【单选题】The U.S. government and some of the American people believe that reducing America's dependence on foreign petroleum is one of the reasons to start research into the possibility of using ethanol.
【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...