vocabulary

2. an area, often covered with sand or rocks, where there is very little rain and not many plants
6. to make certain that something or someone is correct, safe, or suitable by examining it, him, or her quickly
7. something that is of low quality
13. the number of vehicles moving along roads, or the amount of aircraft, trains, or ships moving along a route
15. in a way that is very attractive
17. to start to be seen or to be present
18. in a way that is not obvious to other people because you do not say much
19. any town in the UK that has a cathedral
20. to come or go back to a previous place

1. in a way that is in agreement with the true facts or with what is generally accepted
3. the grey, black, or white mixture of gas and very small pieces of carbon that is produced when something burns
4. in a way that shows that you feel angry with someone or about something
5. an area of sand or small stones near the sea or another area of water such as a lake
8. to plan, prepare for, or organize something
9. an activity that someone does for pleasure when they are not working
10. damage caused to water, air, etc. by harmful substances or waste
11. making a lot of noise
12. to fall or to allow something to fall
14. to be unable to remember a fact, something that happened, or how to do something
16. the surface of the earth that is not covered by water