Fill in the blanks with the most appropriate option:When she ______, they ______ and he left the house.

The correct answer is: B. came/quarreled

The sentence is in the past tense, so we need to use a past tense verb for both “she” and “they.” Option A is incorrect because “comes” is in the present tense. Option C is incorrect because “had come” is in the past perfect tense, which is used to talk about something that happened before another event in the past. Option D is incorrect because “comes” is in the present tense and “would quarrel” is in the conditional tense, which is used to talk about something that might or could happen in the future.

The sentence can be paraphrased as “When she arrived, they started arguing and he left the house.”