IV. Write the correct form of the word given.
16. A man in a silver sports car _________ into a lady in a big blue truck in the middle of the intersection yesterday. (CRASH)
17. Traffic accidents can be _________ if people obey the rules. (PREVENT)
18. He was still _________ when I saw him at 11 o’clock yesterday evening. (WAKE)
19. A crazy cat and a _________ dog help him to find his parents. (FRIEND)
20. How many_________ are there in the program tonight? (PERFORM)