Fill in the blanks with the most appropriate words. _______ earth moves round ______ sun.

(a) An/the

(b) The/no article

(c) The/the

(d) no article/the

Solution:

‘The’ is used as a definite article for a thing or person when the reader knows which one we are exactly referring to. ‘The’ refers to a particular subject and shows the uniqueness of the subjects. Earth and Sun are celestial bodies and are unique in nature.

The earth moves round the sun.

Hence option c is the answer.