玛丽提前3天完成了任务（ahead of）
Mary finished the task 3 days ahead of the due time.
她太累了,看着电视就睡着了（while）
She was so tired that she fell in asleep while watching TV.
每次打网球,我总能赢我表哥（beat）
Whenever I play tennis with my cousin, I could beat him.
你最好别把他们两个安排在相邻的位置上（seat）
You'd better not put them in two neighboring seats.