I.Choose the work whose underlined part is pronounced differently from the others:
1. a,chef b,chair c,teacher d,cheese
2. a,March b,kitchen c,two d,picture
3. a,such b,question c,time d,catch
4. a,furniture b,child c,chess d,photo
5. a,teach b,church c,chance d,machine
6. abrochure b,shop c,fresh d,which
7. a,watch b,nature c,future d,letter
8. a,match b,each c,cheap d,mustache
9. a,check b,change c,champagne d,choose
10. a,parachute b,much c,search d,achieve