选出下列每组单词中与其他两项不同类的一项。①{#blank#}1{#/blank#}A．pick B.swim C.summer
②{#blank#}2{#/blank#}A．season B．summer C．autumn
③{#blank#}3{#/blank#}A．spring B．sometimes C．usually
④{#blank#}4{#/blank#}A．often B．always C．spots
⑤{#blank#}5{#/blank#}A．sunny B．cake C．rainy
