Select the most appropriate option to improve the underlined segment in the given sentence. If there is no need to improve it, select ‘No substitution required'.
The secretary talks over the phone right now.

Options

A. is talking
B. talked
C. No substitution required
D. was talking

Answer

A

Explanation

Talking over the phone’ is a present continuous action which takes the present participle verb `V_(ing)` from (talking). Hence, is talking will be the most appropriate answer