I. Choose the word whose underlined part is pronounced differently from the others.
1 A. books B. toilets C. sinks D. kitchens
2 A. borrow B. town C. pillow D. window
3 A. knocks B. puts C. writes D. reads
4 A. lights B. chairs C. beds D. classrooms
5 A. cupboard B. hungry C. computer D. study