19.(A). The governor is having a swimming party.

　　(B). Part of the airplane wing is burning.

　　(C). The poplar trees are swaying in the breeze.

　　(D). People are changing their attitudes.

　　20.(A). Joe is a trooper. (B). Joe is very honest.

　　(C). Joe is a real friend. (D). Joe’s pail is blue.

　　答案与音频文本：

　　DC

　　19. Popular opinion is swinging away from the governing party.

　　20. I’ll say one thing for Joe, he’s a true pal.