All answers are in present simple and are regular verbs (exceptions are made in option 3., option 5. and option 9.), which means that they follow the general rule of conjugation:
<u><em>First person singular:</em></u> Yo + <em>root</em> + termination "-o".
<u><em>Second person singular:</em></u><em> </em>Tú + <em>root</em> + termination "-as".
<u><em>Third person singular:</em></u><em> </em>Él/Ella/Eso + <em>root</em> + termination "-a".
<u><em>First person plural:</em></u><em> </em>Nosotros + <em>root</em> + termination "-amos".
<u><em>Second person plural:</em></u><em> </em>Ustedes + <em>root</em> + termination "-an".
<u><em>Third person plural:</em></u><em> </em>Ellos/Ellas/Esos + <em>root</em> + termination "-an".
<em>Note: When the root and the termination matches, termination is not repeated.</em>
<u><em>Correct answers are as it follows:</em></u>
1. As the subject is <em>first person plural</em> <em>(nosotros) </em>and the termination is "amos" and the verb is "caminar", so the root is <em>"camina"</em> and then the correct answer is <em><u>"CAMINAMOS"</u></em>.
2. As the subject is also <em>first person plural</em> <em>(nosotras) </em>and the termination is "amos" and the verb is "buscar", so the root is <em>"busca"</em> and then the correct answer is <em><u>"BUSCAMOS"</u></em>.
3. The verb "<em>gustar</em>" (<em>"to like</em>") is conjugated differently, even when it is also in present simple, because the subject it is not first person singular, but in this case: "<em>cenar</em>" ("<em>dinner</em>"), since its the one that its causing an emotion (like, dislike) in the first person singular<em> (yo, me)</em>, which only works as an indirect object that the verb refers to. So the parts are: subject (the thing, experience or person that causes emotion) + verb (conjugated agreeing with the subject) + indirect object (using a pronoun agreeing with the indirect object).
Therefore, in this case, "A mi no <u><em>me gusta</em></u> cenar...". The subject is "<em>cenar</em>" which is a third person singular<em> (eso = cenar</em>) and the termination is "a", for the verb <em>"gustar"</em> which has the root<em> "gusta"</em>. And the indirect object is the first person singular (<em>yo</em>), which has a pronoun "<em>me</em>". The pronoun always goes before the verb conjugated, so the correct answer is: <u><em>"ME GUSTA". </em></u>
4. As the subject is <em>third person plural</em> <em>(ellos = Mauricio and Luis) </em>and the termination is "an" and the verb is "dibujar", so the root is <em>"dibuja"</em> and then the correct answer is <em><u>"DIBUJAN"</u></em>.
5. As explained in the option 3. the verb <em>"gustar" </em>has its own way to be conjugated. So in this case, the subject is "<em>exámenes</em>" which is third person plural (<em>esos</em>), so the termination is "an", which has the root "gusta". And the indirect object is the first person singular that has a pronoun "<em>me</em>". The pronoun always goes before the verb conjugated, so the correct answer is: <u><em>"ME GUSTAN". </em></u>
6. As the subject is <em>third person singular</em> <em>(ella = Carmen) </em>and the termination is "a" and the verb is "cenar", so the root is <em>"cena"</em> and then the correct answer is <em><u>"CENA"</u></em>.
7. As the subject is <em>first person singular</em> <em>(Yo) </em>and the termination is "o" and the verb is "necesitar", so the root is <em>"necesito"</em> and then the correct answer is <em><u>"NECESITO"</u></em>.
8. As the subject is <em>first person singular</em> <em>(Yo) </em>and the termination is "o" and the verb is "llevar", so the root is <em>"lleva"</em> and then the correct answer is <em><u>"LLEVO"</u></em>.
9. As explained in the option 3. the verb <em>"gustar" </em>has its own way to be conjugated. So in this case, the subject is "pizza" which is third person singular (<em>eso</em>), so the termination is "a", which has the root "gusta". And the indirect object is the second person singular (<em>tú</em>) that has a pronoun "<em>te</em>". The pronoun always goes before the verb conjugated, so the correct answer is: <u><em>"TE GUSTA". </em></u>
10. As the subject is <em>third person singular</em> <em>(Él = Adrián) </em>and the termination is "a" and the verb is "bailar", so the root is <em>"baila"</em> and then the correct answer is <em><u>"BAILA"</u></em>.