选出每组中不属于同一类别的词。(每小题1分，共5分)
( ) 1. A writes B studies C cooks D bus
( ) 2. A sing B draw C dance D song
( ) 3. A cooks B studies C goes D hobbies
( ) 4. A hiking B dancing C writing D playing
( ) 5. A Canada B Australia C Sydney D England