选择恰当答语⑴Is it a clock?{#blank#}1{#/blank#} A. It's green.
⑵What color is this?{#blank#}2{#/blank#} B. No, there isn't.
⑶What's that?{#blank#}3{#/blank#} C. That's right.
⑷Is there a black pillow?{#blank#}4{#/blank#} D. Yes, it is.
⑸It's B3.{#blank#}5{#/blank#} E. It's a book.
