Circle the letter A, B, C, or D to indicate the word whose underlined part is pronounced differently from that of the rest in each of the following questions. 1. A. traffic B. safety C. handle D. jam 2. A. pedal B. inventor C. helicopter D. system 3. A. traffic B. safety C. transport D. crash 4. A. cycling B. skytrain C. flying D. electricity Giúp mình