bài 1 :
/ f / : knif , cough , leaf , paragraph , phonetic ,stephen , rough , life , laugh , enogh , tough
/v/ : knives , of , lever , leaver , live , very , converstion , move , lovingly
bài 2 :
1. /v/ : vase , living , very
/f/ : fred
2./v/ : flower , front
/f/ : vase , over
3./v/ : nerver , over, november
4./v/ : far , faraday
/f/ : travelld , volleyball
bài 3 :
1, stomachache
2, sore thoar
3, cough
4, toothache
bài 4:
1 toothache
2 black ache
3 headache
4 stomachache
5 earache
6 flu
7 sore throat
8 cough
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