Columbus is known for the great discovery ________a new land—America.A.making up B.making into C.make from D.made of 这几个词能帮我区别一下吗正确答案为D```

___ is known to all,Columbus used a ship to discover America about 450 years ago.为什么填It而不填As?两者有什么区别? columbus proved that the earth is round Columbus is known for the great discovery ________a new land—America.A.making up B.making into C.make from D.made of 这几个词能帮我区别一下吗正确答案为D``` It is well-known Gap is known till 13.Corn originated in the New World and thus was not known in Europe until Columbus found it _____ (_____ ) is the biggest city fo Australia (_____ ) is the biggest city fo UK? (_____ ) is the biggest city fo Canada (_____ ) is the biggest city fo UK Edison is a well-known American inventor. 完形填空悬赏高分,急!Edison is a well-known American inventor. He was taught by his mother when he was a child. Later he learned things (1) _ himself by reading and experimenting. He built a lab fo as is known,it is known不同用法? As is known 还是It is known英语 (_____ ) is the biggest city fo Austeralia (_____ ) is the biggest city fo Japan it is well known that newton one of the greatest scientists.is known for is known as is known to is known by Venice is known as( )London is known as(Venice is known as( )London is known as( )求了 用 is known as 造句,