19.　 He saw a s_______ of white arrows painted on the road.

18.　 Some animals have the p________ to see in the dark.

17.　 In the afternoon all the students went to an e_______ of modern art.

16.　 A v______ is a person who lives in a village.

15.　 you should s________ this opportunity. It may never come again.

14.　 My son i______ me while I was talking with the guests, although I had told him to keep silent.

13.　 These easy English reading are very p_________ with middle school students.

12.　 –How do you like the new employee?

_His loyalty to the company has made a good i_______ on me.

11.　 Several companies are e______ against each other for the contract. I wonder which will be　 the winner.

10.　 A woman was a _______ and robbed be a group of young men.