10. The soil can a__________(吸收) water, so it helps to keep water from flowing away.
9. As the water supply is d_________(下降), water prices are expected to keep increasing.
8. Oil has a density lower than 1,000kg/m3, so it will f______(漂浮) on water.
7. ---- He’s only fourteen.
---- I know, but I think we can t_________(信任) him to look after the baby for an hour.
6. A n________ is a place where young children are taken care of during the day while their parents are at work.
5. The shirt is 100% p___________ cotton, that is, not mixed with any other material.
4. Alcohol(酒精) has a lower f_________ point than water. That’s why the wine can stay liquid on such cold weather.
3. Life in the oceans appears in different sizes, r__________ from the tiniest fish all the way up to the biggest blue whales.
2. People in the small island didn’t use cars; horses were the only means of t_______(运输).
1. She dropped a c________(块)of sugar into her tea and stirred(搅拌) it with a spoon.