A.        B.

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

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

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

⑷ {#blank#}4{#/blank#}                 D. girls

— Good morning, Mike. Let's go to school!

— OK!

⑴I'm writing a letter. {#blank#}1{#/blank#}                     A.

⑵I'm drawing a picture. {#blank#}2{#/blank#}                 B.

⑶I'm walking to school. {#blank#}3{#/blank#}                 C.

⑷I'm listening to music. {#blank#}4{#/blank#}                 D.