Peter's jacket looked just the same as Jack's,but it cost (two)as much as Jack's.
Telescopes are (有用的).We can look at the universe through them.
﹣Could you pass me those (盒子)?
﹣Certainly.Here you are.
Last year Susan gave a /'flauə/to Ms.Lu on Teachers'Day.
The new hotel will be built /bi'said/the river.
We must try our (our/ours) best to protect plants.They're important to human beings.