In each of the following questions, a sentence/ a part of the sentence is printed in bold. Four alternatives are given to the bold part which will improve the sentence. Choose the correct alternative corresponding to it. In case no improvement is needed, choose the option corresponding to “No improvement”.
You must complete this work up to Sunday.

Options

A. within Sunday
B. by Sunday
C. on to Sunday
D. No Improvement

Answer

B

Explanation

By (Prep.) : not later than the time mentioned
Hence, by Sunday is the right usage.