天然气作为危险物质的性质,不正确的是()
A.易燃易爆
B.爆炸极限为5—15%
C.有毒
D.无味,必须加臭合格才能及时发现
参考答案:C
根据句意填空。
1. We should not cut too many trees.
2. I'd like you (come) to supper.
3. Is he good at (run)?
4. My sister usually (wash) her clothes on Sundays.
5. Mr Zhang (not work) in Beijing.
6. The book isn't easy (read).
7. She (have) an apple now.
8. What size you (need)?
9. (swim) is good for our health.
10. Why not (sing) an English song?
Peter _____ a little money every month so that he can buy a car of his own in the near future.[ ]
A. sets aside
B. sets about
C. sets off
D. sets out