1. (2018·枣庄) 请根据句意从方框中选择合适的单词，并用其适当形式填空，使句子完整正确，每个单词只用一次。

expect    he    interest    hard    twenty

1. （1） I think history is . I like it very much.
3. （2） People ever keep their resolutions, though they make them.
5. （3） I helped to kill the cannibals.
7. （4） I've read a lot of books and this is the book I have read this year.
9. （5） Life is full of the ; bad luck may turn into a good thing