1 . My question is ________ I can finish it in one hour. (用适当的词填空)

2 . The reason for their failure you know is ________________ they are lazy. （用适当的词填空）

3 . The reason why he failed is __________ he was too careless.

4 . The last time we had great fun was ________ we were visiting the Water Park.

5 . Mum, I’m not to blame. I am ________ you have made me. （用适当的词填空）

6 . He did not work hard and that’s ________ he failed the exam. (用适当的词填空)

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

8 . When you get separated from your mother, please remain _______ you are.

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

10 . The problem is __________ students should deal with their mistakes after class so that they can avoid making them again. (用适当的词填空)