题目内容
根据首字母，选择适当的单词填空
Bethoven was a great m________ who wrote a great deal of music for us.
We must have 8-hour sleep every night so that we'll have enough e________ next day.
These photos were taken by a well-known p________ from Canada.
Let's go to visit the museum！ There are many amazing dinosaur fossils on d________.
