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III. Identify a mistake in each sentence and correct it: (ex. 5- WS3)
1. Mai went to the Student Support Office although she wanted to get some advice.
2. I don't know which one is most ancient: Bat Trang pottery village or Bau Truc pottery village?
3. Are you sure you can get on your new classmates?
4. If you don't know what to operate the machine, you should read the instruction manual.
5. Ngoc is stressful because she's sitting an important exam tomorrow.