Einstein is known _________ a great scientist. A of B for C as D to
Some scientists think that it may take ______ years to make robots look like people, and do the same things as us.
I think he is a student, ____?
What ____ sad news! We can’t get the movie tickets.
When she _____ the newspaper, the baby _____ asleep.
Could you please ______ such a thing again?