Choose the appropriate verb and fill the blanks with appropriate verb form: (fell / go / pain / hurt) Don ___ down the stairs this morning and ______ his leg.

The correct answer is: Don fell down the stairs this morning and hurt his leg.

The verb “fell” is the past tense of the verb “to fall”, which means to

move or drop suddenly and heavily to the ground. The verb “hurt” is the past tense of the verb “to hurt”, which means to cause pain or injury to someone or something.

The other options are incorrect because they do not make sense in the context of the sentence. The verb “gone” is the past tense of the verb “to go”, which means to move from one place to another. The verb “pained” is the past tense of the verb “to pain”, which means to cause someone to feel pain.

In the sentence, Don fell down the stairs, which means that he moved or dropped suddenly and heavily to the ground. This caused him to hurt his leg, which means that he experienced pain in his leg.