4 . 用所给词或短语的适当形式填空。

possible; achieve; dig; they; think about; be surprised at; depend; as well as; heavy; fifty

1. Everyone ________ the changes of their hometown when they got off the plane and felt proud.
2. In the USA, the National Day is called ________ Day. People celebrated it since 1777.
3. Life is fair. No goal can ________ easily without coming through difficulties.
4. It’s never too old to learn. Karl Marx began to learn English in his ________.
5. All of us will be free this weekend. Is there any ________ that we will see you and play together?
6. The fighting spirit of China’s women’s soccer team encourages all the Chinese, so people even praised ________ as “Steel Roses”.
7. Believe it or not! Tom spent over nine hours ________ the hole in order to escape from the cave.
8. It made people ________ the beautiful and peaceful countryside.
9. It was raining ________ outside while the family were getting together in their large camp, singing and dancing.
10. I will volunteer for a two-day homestay for an exchange student from the UK. I consider it a good chance to show Chinese food ________ our kindness.