日本成人片在线_久久免费精品视频_国产午夜精品久久久久久免费视_校花撩起jk露出白色内裤国产精品_av影片免费在线观看_国产小视频在线看_最新av免费在线观看_99久久99久久精品国产片_欧美成人猛片aaaaaaa_蜜桃免费网站一区二区三区

Throughout the world _______ advance has been made in science and technology is due to education which brings forth knowledge, creation and inventions.

 A. whoever          B. whatever      C. what        D. that

Throughout the world__________advance has been made in science and technology is due to education which brings forth knowledge, creation and inventions.

A. whoever          B. whatever      C. what        D. that

Throughout the world__________advance has been made in science and technology is due to education which brings forth knowledge, creation and inventions.

 A. whoever          B. whatever      C. what        D. that

Throughout the world__________advance has been made in science and technology is due to education which brings forth knowledge, creation and inventions.

A. whoever          B. whatever      C. what        D. that

Throughout the world__________advance has been made in science and technology is due to education which brings forth knowledge, creation and inventions.