Select the most appropriate option that can substitute the underlined segment in the given sentence. If there is no need to substitute it, select ‘No substitution required’.
While the online class was going on, they had to keep their cameras on.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. No substitution required
- 'Had to' used in the sentence is correct. Since its a modal verb which means 'to say something that is obligatory'.
- 'Keep' is the main verb.
- Hence, the sentence doesn't require any substitution.
Clearly, the correct sentence is-
While the online class was going on, they had to keep their cameras on.