Answer:
1. They are building new luxury flats, hotels, and company headquarters in every corner.- <u><em>b. Present Progressive because it's a temporary situation.</em></u>
2. I love the feeling of accomplishment.- <u><em>c. Present Simple because the verb expresses a state of mind, not an action.</em></u>
3. Their kids visit them every summer.- <u><em>d. Present Simple because it's a repeated/ habitual action.</em></u>
4. Our pension money lasts so much longer here, we live very comfortably.- <u><em>a. Present Simple because it is a situation that is true in the present.</em></u>
Explanation:
Tenses are the form of verbs that tell us at what time or period action is done. They are of different types, generally classified according to the time- past, present, and future.
The given statements and their tenses are given as below-
1. They are building new luxury flats, hotels, and company headquarters in every corner.- <em><u>b. Present Progressive because it's a temporary situation.</u></em>
2. I love the feeling of accomplishment.- <u><em>c. Present Simple because the verb expresses a state of mind, not an action.</em></u>
3. Their kids visit them every summer.- <u><em>d. Present Simple because it's a repeated/ habitual action.</em></u>
4. Our pension money lasts so much longer here, we live very comfortably.- <em><u>a. Present Simple because it is a situation that is true in the present.</u></em>