George Washington _____ the Father of American history. A: is known to B: is known for C: is known as D: is known by

Where to find the teacher and where to do the experiment ______. A: are not known B: is not known C: has not known D: have not known

I have known her for a long time. / She........................ to me for a long time. A: has known B: has been known C: is known

I'll make（）Mark was once a good singer. A: it known as all that B: it known to all that C: that known to all that D: that known to all

His brother doesn’t want （） he’s going away from home. A: to be known that B: it that to be known C: it to be known that D: that it to be known

China________ the Great Wall in the world. A: is knew for B: is known as C: is known for D: is known like

He is __________ as a “bellyacher” —— he’s always complaining about something. A: who is known B: whom is known C: what is known D: which is known

_______ that he could speak English very well, they all came to practise English with him. A: He being known B: It was known C: He was known D: It being known

The man________ for his frankness will make a speech at the meeting. A: knowing B: known C: being known D: having known

‍Not until many years later______.​ A: the whole truth became known B: has the truth become known C: has the truth become known D: did the whole truth become known