Meaning:
To have a lot of enthusiasm to do something
Example:
Henry is always very eager to answer questions in class.

3.Early bird

Meaning:
Someone who goes to bed early and gets up early
Example:
I’m an early bird, so I always go jogging in the park every morning.

4. Night owl

Meaning:
Someone who like to go to bed late and get up late
Example:
I’m a night owl, so I like to play computer games after everyone else has gone to sleep.

5. At least

Meaning:
The same as or more than a number
Example:
I asked the students to write at least five sentences for their homework this week.