Answer:
The incorrect sentences and their corrected versions are below:
1. I've already been listening to Shakira's new CD. --> I've already listened to Shakira's new CD.
4. She's been going to five concerts this month. --> She went to five concerts this month. / She has gone to five concerts this month.
6. How many times have you been listening to that song? --> How many times have you listened to that song?
Explanation:
1. The sentence uses the present perfect continuous (have + been + verb -ing) for an action that is already over. Since we do not know exactly when the action took place, the best option is to use the present perfect (have + participle).
4. The sentence indicates a time when the action took place: this month. Now, there are two ways we can interpret this. If we think she is finished going to concerts this month, we can use the simple past. If, however, the month is not over and she intends to keep on going to concerts, we can use the present perfect.
6. The problem here is the same as with sentence 1. There is no reason to use the present perfect continuous when there is nothing indicating the action is still in progress.
