⑴ {#blank#}1{#/blank#}                 A. behind

⑵ {#blank#}2{#/blank#}                    B. on

⑶ {#blank#}3{#/blank#}                  C. under

⑴I'm in Class Three，Grade Four. {#blank#}1{#/blank#}             A.

⑵He is from the UK. {#blank#}2{#/blank#}                                    B.

⑶These are bears. {#blank#}3{#/blank#}                                        C.

⑷It's summer. I can swim. {#blank#}4{#/blank#}                             D.

⑸It is a toy car. {#blank#}5{#/blank#}                                                E.