A. met III. There is a mistake in the four underlined parts of each sentence. Find the 21. My mother is a busy teacher. At the end of the day's work, she is often exhausting. A B C D 22. Mary as well as her friends are going to a party tonight. A B C D 23. She was so a lazy girl that she was punished by her teacher. A B C D 24. The Nelson said that he goes to the church the day before. A B C D 25. They have worked in that bank since they have been thirty years old. C D A B IV. Fill in the numbered blanks in the passage with ONE suitable word from the box. There is ONE extra word.