选出划横线部分发音不同的一项: (10分)
( ) (1)A.sing B. pig C. dog D. big
( ) (2)A. three B. thanks C. that D. think
( ) (3)A. came B. cake C. fat D. take
( ) (4)A. snow B. yellow C. now D. blow
( ) (5)A. meat B. seat C. bread D. peach