-ly bad 坏的 badly 坏，差

happy 高兴 happily 高兴地，幸福地

1． Junk food may ______great, but it is not good for your health. (taste, tasty)

2． Haven't I told you many times that you should not eat fruit that is not ____? ( ripe, ripeness)

3． It is necessary to have a physical ____every year. ( examine , examination)

4． After a whole morning's sports activities, we need to _____for the rest of the day.(fuel , refuel)

5． Science is of great help in developing the ______(economy, economic)

6． The new maglev train that connects the city of Shanghai with Pudong Airport is both fast and _____ .(comfort, comfortable)

7． Car drivers should always ______their seat-belts. (fast, fasten)

8． Most metals ______electricity very well.(conduct , conductor )

9． Many people have trouble in finding jobs, so that many of them become ______(hope, hopeless) in life.

10． Thanks to hard work, he _______(success, succeed, successful)in working out the problem.

Answers 1. taste 2. ripe 3. examination 4. refuel 5. economy 6. comfortable 7. fasten 8. conduct 9. hopeless 10. succeeded