—You're welcome.

⑴It was short then.{#blank#}1{#/blank#}         A. They aren't young now.

⑵They weren't big then.{#blank#}2{#/blank#}    B. It is dirty now.

⑶It isn't clean now.{#blank#}3{#/blank#}         C. It wasn't tall then.

⑷They are old now.{#blank#}4{#/blank#}         D. They were small then.

Tom, {#blank#}1{#/blank#} {#blank#}2{#/blank#} across the road when the light is red. 

Tony's diet is {#blank#}1{#/blank#} {#blank#}2{#/blank#} as David's.