Question

The invention of telegram_the transmission of messages to any part of the world within a few second

A.made it possible B.made possible C.made possibly D.made possible
答案是B，为什么不是A

Answer 1

make后面 要是加it，就不能在加the transmission of messages
the transmission of messages和it只能有一个。两者区别就是it是形式宾语，只能紧跟在动词make后面，真正的宾语the transmission of messages位置没有这个限制

这句话还可以这么写 The invention of telegram made the transmission of messages possible to any part of the world within a few second 这样是不是更清楚一点，it是多余的

Answer 2

“电报的发明使得信息在很短时间内传送到世界任何角落成为可能”made it possible 中it做形式宾语，指代后面的the transmission of messages 。这样换过后，语意不通，所以...
made it possible 后加to do sth.