听音,选出你所听到的单词。
( )(1)A . clean B. cool C. keep D. car
( )(2)A . hot B. hotter C. get D. getting
( )(3)A .building B. changing C. singing D. interesting
( )(4)A .plant B. down C. become D. long
( )(5)A .spring B. air C. fresh D. rice