The wheel is thought to be ____ invention of the fist importance in ____ human historyA an,the B an,/ C the,the D the,/,

问题描述:

The wheel is thought to be ____ invention of the fist importance in ____ human history
A an,the B an,/ C the,the D the,/,

特定的哪一个用定冠词the,这里专门指the wheel
in human history在人类历史上 固定词组搭配