在空白处填入1个适当的单词——固定搭配 1.Usually the discount in this shop only applies 　　　　children under the age of

在空白处填入1个适当的单词——固定搭配
 1.Usually the discount in this shop only applies 　　　　children under the age of ten every winter. 
2.Even though we may not be aware 　　　　it, our actions can stand for our thoughts.  
3.What traditions in China are disappearing or are 　　　　danger of disappearing? 
4.　　　　occurred to me that day that art and beauty are the common language of mankind. 
5.Last spring, I was fortunate to be chosen to participate　　　　the running of the club. 
6.I think the boy has the potential 　　　　painting, but he needs training. 
7.100 years ago, a big fire broke out in the old building, leaving it 　　　　ruins. 
参考答案及解析：
1.to。 apply to适用于。
2.of。 be aware of意识到。
3.in。 in danger of有……的危险。
4.It。 It occurred to sb. that...某人想到……;同义表达有It struck sb. that...某人突然想到……
5.in。 participate in参与。
6.for。 have the potential for有……的潜力。
7.in。 in ruins毁坏,严重受损。