下面的句子中动名词在句中做什么成分?

题目

下面的句子中动名词在句中做什么成分?
1.representing our university’s student association.
2.they were coming to study at Beijing university.
3.after half an hour of waiting for their flight to arrive.
4.I saw several young people enter the waiting area looking around curiously.
5.I stood for a minute watching them and then went to greet them.
6.she stepped back appearing surprised and put up her hands.
7.then Akira Nagata from Japan came in smiling.
8.when Darlene Coulon from France came dashing through the door.
9.she recognized Tony Garcia’s smiling face.
10.in the same way with touching or distance between people.
11.they also express their feeling using unspoke”language”through physical distance.
12.but some cultures use other greeting as well,such as the Japanese,who,perfer to now.
13.studying international customs can certainly help avoid difficulties in today’s world of cultural crossroads.
注：例如 一个动名词在句中作状语 是什么状语?
这个请回答清楚……
如果可以翻译请尽量

答案

怪异诶
1 动词DOING表叙事 “代表我们大学学生会”
2 谓语表进行时 “来北大学习”但COME是短暂动词一般不用进行式
3 介词短语作定语修饰HALF AN HOUR “在等待他们班机抵达的这半小时之后”
4 第一个,定语 “等待区” 第二个,做伴随状况状语 “人”“进入等待区”的同时“好奇地环顾”
5 伴随状况状语 “站一分钟一直在注视他们”
6 同上 “她回来了,看上去很惊讶”
7 介词短语做伴随状况状语 “微笑着来了”
8 谓语 “急奔穿过那道门”
9 定语 “微笑的脸”
10 介词短语作定语修饰WAY
11 方式状语
12 宾语.GREETING做名词,表问候.
13 主语,“学习国际习俗”这事儿“能够确实地帮助避免在如今文化多元交叉
的世界的问题.”