--Is Sam taller than John？--No. Sam is not him.A. tall than B. the same tall asC. taller

问题补充：

--Is Sam taller than John？

--No. Sam is not him.

A. tall than

B. the same tall as

C. taller than

D. so tall as

答案：

A. tall than

B. the same tall as

C. taller than

(答案→)D. so tall as

解析：考查英语中的比较。tall than无此说法； the same tall as和……一样高；taller than比……高；so tall as和not连用表示不如……高。句意：萨姆比约翰高吗？——不，萨姆不如他高。故选D。