v. to go away from something or someone
You can leave after you turn in your test.

n. a place made for keeping fishes and water plants
I enjoy looking at the fish in my huge aquarium.

adj. feeling uneasy or anxious about something
I was so nervous during the audition that I couldn’t stop my knees from shaking.

n. a person who leads others on a course or journey
Our tour guide explained the importance of the area.

n. one of two main parts of an academic year at many schools and colleges
This semester I am doing a lot of sports.

conj. used when talking about someone or something that is not included with others
He did well in all of his subjects except math.

n. a place where objects from the field of art, science, or history are displayed and shown to the public
The history museum is closed on Sundays.

n. the process or activity of performing an action repeatedly in order to improve a skill
Practice makes perfect.

n. the scientific study of the structure of substances and of the way that they react with other substances
Chemistry is a difficult subject, but it is very interesting.

n. pieces of writing, such as novels, stories, poems and plays that are regarded as excellent and important
Modern literature has a broad range of styles.