-- ________ your homework yet?-- Not yet. I _______ it.
No one knows how the huge rocks and ___ without our modern machines eight hundred years ago.
—Susan’s parents have bought a large house with a swimming pool.—It be very expensive.
This picture is quite old, we can still see it was drawn in century.
The place _______interested me most was the Children’s Palace.
Mr Yu gave some new words to Lucy and asked her to on the blackboard.