Question

Fill in the blank with the most appropriate option:
I lost my keys ________ I was playing football.

• A. during
• B. while
• C. because of
• D. for

Answer 1

The correct option is B while

Option B; 'While' as a time conjunction refers to an event that happened at the same time as another. Here, the person 'lost his keys' at the time of 'playing football'. Hence this option is correct.

Option A: 'During' also refers to a time period. But, the word 'during' is generally followed by a noun or a gerund (or an article + noun). For e.g., 'during the game'. Since the word 'I' is a pronoun, option A is incorrect.

Option C: 'Because of' states a reason, where one action happened due to the cause of another. These two actions in the statement are not related through cause, but time (while). Hence option C is incorrect.

Option D: 'For' also refers to a reason, and this option is hence incorrect.