Choose the appropriate articles to complete the given sentence. Mr. Mukesh…

Correct answer: no article, a.

Key points:

• When describing means of transport after the preposition "by," we usually omit the article. Correct example: "by rickshaw."

• Use "a" before words that begin with a consonant sound. "Book" begins with a consonant sound, so "a book" is correct.

• Other options are wrong for these reasons: using "a" before rickshaw after "by" is not idiomatic here; using "the" would imply a specific rickshaw known to listener; using "an" is wrong because "rickshaw" begins with a consonant sound.

Correct sentence: Mr. Mukesh went to market by rickshaw to buy a book and returned by rickshaw.