She __ the house when I __ to her after a long time.a.has been cleaning / have goneb.is cleaning / am goingc.will be cleaning / god.had been cleaning / went

To determine the correct answer to the given sentence, we can analyze the context and the tenses used:

• We need a past perfect continuous action for "she" to indicate an action that was ongoing before another past action ("I went").
• The phrase "when I __ to her after a long time" implies that the second action is in the past simple tense.

Breakdown of the Options:

1. a. has been cleaning / have gone: This is present perfect and does not fit the time context.
2. b. is cleaning / am going: This is present continuous, which is incorrect for two past actions.
3. c. will be cleaning / go: This is future tense, which does not work in the context of the sentence.
4. d. had been cleaning / went: This uses past perfect continuous for "she" and past simple for "I," making it the correct choice.

Final Answer

The correct option is d. had been cleaning / went.

Thus, the complete sentence would read: "She had been cleaning the house when I went to her after a long time."