I ran across a car crash in Hong Kong, and ________, both sides just politely exchanged the telephone numbers and cards, a surprise to me.
What disappointed us was that the player should ________ the game.
The two sportsmen congratulated each other ________ winning the match by shaking hands.
The experiment shows that proper amounts of exercise, if ________ regularly, can improve our health.
________ from the top of the tower, the south foot of the mountain is a sea of trees.
________ at my classmates' faces, 1 read the same excitement in their eyes.