I Find the word which has a different sound in the part underlined. 1. A. surf B. roof C. of D. father 2. A. laugh B. though C. cough D. enough 3. A. machine B. chemical C. Christmas D. backache 4. A. chin B. architect C. mechanic D. headache 5. A. rough B. fast C. although D.ferry II Put the words into the correct column according to the underlined part. wife wives of vain laugh cough live enough victory paragraph invention rough /f/ /v/ …………………………………………. …………………………………………. …………………………………………. …………………………………………. Help me please!

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