Tom is weak in physics. He always feels _______ before he takes a physics test.

Amy is _______ unusual girl. She has traveled to 15 countries in _______ world.

The mountain was ______ steep ______ few people in our city reached the top.

Once a year, people take part in “_______ Lights” activity to help save energy.

The UN is trying to ______ the world ________ hunger.