I know the second one is present tense
I assume you mean the verb conjugation of the present perfect? It's used to talk about things that started in the past, but are still going on right now (in the present) or something that happened recently.
To form it use the past participle of haber + the past participle of another word. For example:
He visto las montañas de Perú
(I have seen the mountains of Peru)
Hemos vuelto para comprar la leche
(We have returned to buy milk)
Habéis cantado muy bien
(You have/You've sung very well)
If you need more info, here is a good place: http://www.spanishdict.com/guide/spanish-present-perfect-indicative
Answer:
Explanation:
Dear Mr. Chlorastoma,
I am applying for a job at your Photosynthesis Factory. I am applying for this job, because I think I am the best at photosynthesis. My chloroplasts are extremely good at absorbing all of the sunlight's energy. Producing sugars and oxygen from water and carbon dioxide is by far the best talent I have in photosynthesis! And my stomata, will blow you away by how amazing they are at letting the carbon dioxide enter the leaf. I can definitely trust them, and you should be able to too! And that green color of mine, comes from my amazing chlorophyll! I bet I will be the greenest leaf you have ever seen! I encourage you to hire me!
The answer is (a) because compro is bought in Spanish and in the question it says “yesterday he bought the gifts for his mother” so bought would be the best answer. (B) is to buy I guess like I will buy chicken. And (c) is like they bought chicken. How I know this is well I speak Spanish I hope this helps!