Tom isn’t JackA. tall asB. so tall asC. the taller thanD. the tallest than

问题补充：

Tom isn’t Jack．

A. tall as

B. so tall as

C. the taller than

D. the tallest than

答案：

A. tall as

(答案→)B. so tall as

C. the taller than

D. the tallest than

解析：句意：汤姆不如杰克高。两者进行比较该用比较级，但比较级前通常不用定冠词。Not so···as不如……，中间要用形容词的原级，所以选B。