______ speak loudly . Keep quiet, please.
从B栏中选择能回答A栏中各句问题的选项,将序号填入题前括号里。
pen is lost! A. You B. I C. My
I need four, please. A. tickets B. ticket C. station
A train is than a plane. A. faster B. slower C. slow
A train isthan a bus. A. fast B. faster C. slower