2017高考英语全国2卷，语法填空

不可以，这里只能添加名词形式的crowd。中文意思是允许人们避免拥挤的人群。avoid是及物动词，后面要带名词，而crowding的词性是形容词。

拓展资料

避免；防止

a book on how to avoid a heart attack      一本关于如何预防心脏病发作的书

emergency action to avoid a disaster       旨在避免灾难的紧急行动

to avoid doing sth    避免做某事

Drink lots of water to avoid becoming dehydrated.     大量饮水以免脱水。

2. 避免；戒绝

They should avoid alcohol.     他们不应喝酒。

to avoid the subject of sth    避开某个话题

All through lunch he had carefully avoided the subject of the house.

整个午饭期间，他一直在小心翼翼地回避房子的话题。

to avoid doing sth   避免做某事

Try to avoid breathing in the fumes.     要尽量避免吸入烟雾。

Avoid going out on your own at night.    避免夜间独自出门。

3.逃避

He fled to Costa Rica to avoid doing military service.  为了避免服兵役，他逃到了哥斯达黎加。

4.躲开；避开

She swerved to avoid an oncoming car.     她突然转向以避开迎面开来的汽车。

The driver had ample time to brake or swerve and avoid the woman.

司机有足够的时间刹车或急转弯，来避开那个女人。

5.躲避；逃避

She thought he was trying to avoid her.     她觉得他在尽量避开她。