Question

While I________ the room, I saw a snake.​

Answer 1

Answer:

was in

Explanation:

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Answer 2

While I swept the room, I saw a snake. -This is a correct answer.

Explanation:

• When we use the conjunction 'while' we get a subordinate clause.
• The tense of the main clause must be the same in the subordinate clause when we use the conjunction 'while'.
• The main/ independent clause in the sentence is 'I saw a snake'.
• The tense used here is simple past tense.
• Hence the subordinate/ dependent clause must be in simple past tense.
• So the blank can be filled in any verb in simple past appropriately.
• We can use: swept, entered, opened, etc.,
• While I swept the room, I saw a snake.
• While I entered the room, I saw a snake.
• While I opened the room, I saw a snake.
• The above all are possible answers for the sentence.