Ⅰ.单词拼写
1._Exposed__(暴露)to so many advertisements, we can't help being persuaded to buy something we don't really need.
2．Has the government_announced__(宣布) that they will build a new highway to the mountain?
3．The babies are well_attended__(照顾) in the popular nursery.
4．Finding a solution to this problem is one of the greatest_challenges__(挑战)faced byscientists today.
5．He_concluded__(结束) his speech with an interesting story.
