Read and choose. 选出画线部分读音不同的一项。
(1)A. short B. fork C. horse D. doctor
(2)A. read B. clean C. sweet D. tree
(3)A. window B. now C. know D. yellow
(4)A. this B. clothes C. thin D. that
(5)A. coat B. boat C. about D. road