We don’t know her. She is a ______ to us.

e is less and less coal and oil, scientists are exploring new ways ofmaking use of ______ energy, such as sunlight, wind and water for power andfuel.

I don’t ruin myself for my friends; I don’t __________ your praise. I care greatly for myself.[ ]

Yesterday the teacher told us that theearth ________around the sun.

Jack with his two kids to the beach for vacation every year.