A communicative satellite as much as 3.5 tons was sent up into space last week.A. weighin

问题补充：

A communicative satellite as much as 3.5 tons was sent up into space last week.

A. weighing

B. weighed

C. to be weighed

D. being weighed

答案：

(答案→)A. weighing

B. weighed

C. to be weighed

D. being weighed

解析：考查分词做定语。本题中的现在分词短语weighing as much as 3.5 tons修饰名词satellite,做定语；因为weigh与satellite构成主动关系，故使用现在分词的形式。句意：一颗重达3.5吨的通信卫星上个星期被送上了太空。故A正确。