Dear Mary,

     Now I'm at Bill's home. Please {#blank#}1{#/blank#}(help) me do some things. First, {#blank#}2{#/blank#} (get) some food for my dog Robot. After Robot finishes eating his food, you can{#blank#}3{#/blank#}(clean) his small room. Then, {#blank#}4{#/blank#} (take) him for a walk. {#blank#}5{#/blank#}(not let) him be with Mom's dog Frank. They will fight. Many thanks.

    Your sister

Mona

—{#blank#}1{#/blank#}

—{#blank#}2{#/blank#}

—Sorry, I have no idea.

{#blank#}1{#/blank#}+{#blank#}2{#/blank#}={#blank#}3{#/blank#}