It’s so wet there that the trees are extremely tall some over 90 meters.A. measuringB. t

问题补充：

It’s so wet there that the trees are extremely tall, some over 90 meters.

A. measuring

B. to measure

C. measured

D. measure

答案：

(答案→)A. measuring

B. to measure

C. measured

D. measure

解析：

试题分析:考查独立主格结构。从结构判断后面部分是独立主格形式，measure和逻辑主语some之间是主动关系，所以用现在分词，故A选项正确。句意：那儿是如此的潮湿以至于很多树长得非常高，一些高达90多米。