2 . This is ________ my father has taught me—to always face difficulties and hope for the best. (用适当的词填空)

3 . He overslept this morning. That’s _______ he was late for the class.

4 . This small town is no longer ________ it was five years ago.

5 . As a member of society, I am aware that being responsible is _____ it takes to make a better society.

6 . —I prefer shutting myself in and listening to music all day on Sundays.
—That’s ________I don’t agree.You should have a more active life. （用适当的词填空）

7 . The most pleasant thing of the rainy season is __________ one can be entirely free from dust.

8 . The truth is ___________we are lucky enough to have clean water whenever we want, but this is not the case for many people around the world. (用适当的词填空)

9 . He had seen the movie before. That’s ______ he didn’t see it last night. (用适当的词填空)

10 . From space, the earth looks blue. This is ________   about seventy­one percent of its surface is covered by water. (用适当的词填空)