ⅰ.语法单句填空 1．all the drivers have been warned that driving after drinking shall bring ________ serious accidents. 答案：about 句意为：所有的司机都被警告过酒后开车可能会引发严重的交通事故。bring about引起，造成。 2．while cleaning paul's room, mary came ________ his diary and started to read it. 答案：across 句意为：当玛丽清理保罗的房间时，偶然看见他的日记并开始读起来。
