Direction: In the following passage some of the words have been left out. Read the passage carefully and choose the correct answer to each question out of the four alternatives and fill in the blanks.

Although we can (891) the (892) bodies of our solar system (893) a telescope, it is only (894) who can (895) the depths of outer space. It is reported that they have seen (896) galaxies, stars taking (897) and (898), and ‘black holes’. They say that the deeper they look (899) the universe, the more they know (900) the universe originated.