How many ? 

A、five      B、four      C、two      D、three      E、seven       F、nine

How many dogs?          

① first{#blank#}1{#/blank#}    ② third {#blank#}2{#/blank#}③ tweIfth{#blank#}3{#/blank#}

④ twentieth{#blank#}4{#/blank#}⑤ eighth{#blank#}5{#/blank#}⑥ second{#blank#}6{#/blank#}

—I can see ______.

⑴one   {#blank#}1{#/blank#}                         A. 二

⑵class   {#blank#}2{#/blank#}                       B. 一

⑶grade  {#blank#}3{#/blank#}                       C. 班级

⑷two   {#blank#}4{#/blank#}                        D. 年级