Question

the doorbell Rang while I. (do)

my homework​

Answer 1

Answer:

The doorbell Rang while I was doing my homework​.

Answer 2

The complete sentence should be:

The doorbell rang while I was doing my homework​.

* The given sentence is in the past tense so we need to choose a verb in the past form for the blank.

* The presence of 'while' in the sentence makes the usage of a continuous form of a verb necessary.

* Since the sentence is in the past tense, we use a past continuous form of the verb for the blank.

* Past continuous tense is used for a continuous action taking place in the past. It is also referred to as past progressive tense.