2 . Most doctors think people’s health_______ (可能) be closely related to their diet. （根据汉语提示单词拼写）

3 . This sort of roast meat ________(可能) be a local super food. (根据汉语提示单词拼写)

4 . During the reform process, there________(可能) exist some problems which affect the lives of citizens. (根据汉语提示单词拼写)

5 . Her dress________(可能) be too fancy for such a formal occasion. （根据汉语提示单词拼写）

6 . The man likes fantasies, so his ideas ________ (可能) be regarded as strange. (根据汉语提示单词拼写)

7 . The accident ________ have been caused by a dog running across the road, but we don't know for sure. （用适当的词填空）