Question

Fill in the blanks with suitable prepositions:
The earth is not ________ right angles ________ its path round the sun.

• A. In / on
• B. At / on
• C. At / to
• D. In / to

Answer 1

Answer: (B)

At / on

The second blank of the given sentence indicates the position of the earth around the sun. To is not a preposition of position but on is.

We can thus eliminate the options C and D as incorrect answers.

On denotes a position on the surface or border of something. On thus fulfills the meaning of the meaning of the second part of the sentence.

Both at and in are used to indicate positions. 'At' denotes a position at rest and 'in' denotes a position within. 'At' fulfills the meaning of the first blank.

Thus option B is the correct answer.