I.Choose 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:
Câu 1: A. headache B. chemical C. architect D. children
Câu 2: A. sun B. turn C. hurt D. burn
Câu 3: A. document B. naughty C. water D. audience
Câu 4: A. allergy B. fragile C. program D. general
Câu 5: A. collection B. tradition C. exhibition D. question
Câu 6: A. was B. wall C. walk D. water
Câu 7: A. aunt B. sauce C. caught D. daughter
Câu 8: A. better B. teacher C. prefer D. worker