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2. Find a mistake in the four underlined parts of each sentence and correct. 1. My son can read by the time he was four years old. A 2. Tom won't be able working in the shed because he is ill. C D A B 3. Last summer I went to Nha Trang and buy a lot of souvenirs. C TIẾNG ANH CÔ HÒA, ĐI ...