There are three students in their school.(thousand)
Have you ever read the books (translate)by Yang Jiang?
What about (practice)swimming this summer vacation?
His office is on the (nine)floor of the tall building.
(Kate)grandparents usually have a walk around the lake in the morning.
We shouldn't waste water.Instead,we should (节约) it.
The students are having a (化学) class in the lab.
After working for several hours,he was t and fell asleep soon.
Bill u gets home at 6:00,but today he didn't get home until 7:00.