1.By seeing the accident,the children were scared utterly wordless.
2.From his facial expression and his body language,you can see if the foreigner feels like chatting with you.
3.What if someone leaves you alone on such a desert island,what will you do?
4.The little girl's scream immediately caught the attention of the waiter.
5.We decided to give him a priceless present in return for his generous help.
6.Staring at a stranger is considered as an impolite behavior in the occidental countries.