Select the most appropriate option to substitute the underlined segment in the given sentence. If no substitution is required, select No improvement. Some people in the audience were asleep while the chief guest was speaking. (a) whenever the chief guest spoke (b) when the chief guest has spoken (c) when a chief guest is speaking (d) No substitution

Options

A. whenever the chief guest spoke
B. when the chief guest has spoken
C. when a chief guest is speaking
D. No substitution

Answer

D

Explanation

We use ‘while’ as subordinating conjunctions to introduce adverbial clauses of time. It means ‘during the time that’ and indicates that something is or was happening when something else occurred. Eg: The students checked messages on their mobiles while the teacher was taking lunch