5
________ the world has ever seen has occurred in the information and communications technologies.
________ the world has ever seen has occurred in the information and communications technologies.
举一反三
- He is one of the most _______ (influence) political leaders the world has ever known.
- Winston Churchill is _____ one of the greatest politicians the world has ever known. (doubt)
- Vietnam has _________ as the world’s third-biggest rice exporter. A: emerged B: merged C: occurred D: happened
- How long will the communications last? Communications will continue until ______ has been completed.
- This is the most attractive position_____. A: which a college graduate has ever been offered B: that a college graduate has ever been offered for C: that a college student has ever been offered D: a college student has ever been offered it