读一读，选择正确的答案，将字母代号写入前面的括号内。①What's this?{#blank#}1{#/blank#} A. It's yellow.
②Is this a pear? {#blank#}2{#/blank#} B. It's a pear.
③What can you see?{#blank#}3{#/blank#} C. Yes, it's a pear.
④How many pears?{#blank#}4{#/blank#} D. I can see a pear.
⑤What color is the pear?{#blank#}5{#/blank#} E. Three pears.
