1. Right answer:
correct
This sentence is correct because it stands for the simple present. The simple present tense is used to talk about habitual actions or routines. This tense is also used to describe things that happen now or in the near future. Here this tense is being used to describe a thing is going to happen in the near future, that is, tomorrow (mañana).
I want to run tomorrow
2. Right answer:
incorrect
The first word decido is the conjugation of the verb decidir for the first person singular in the simple present. After conjugations of this verb must come an infinitive verb. However, trabajo is not an infinitive verb, but a conjugation of the verb trabajar (infinitive verb) for the first person singular in the simple present. Finally, the correct sentence is:
Decido trabajar ahora
2. Right answer:
incorrect
The first word decido is the conjugation of the verb decidir for the first person singular in the simple present. After conjugations of this verb must come an infinitive verb. However, trabajo is not an infinitive verb, but a conjugation of the verb trabajar (infinitive verb) for the first person singular in the simple present. Finally, the correct sentence is:
Decido trabajar ahora
3. Right answer:
tocar
The word puede is the conjugation of the verb poder that matches the third person singular in the simple present. After this conjugation must come an infinitive verb (a verb ending in ar, er or ir). From the list, we have that tocar is the only option. Therefore:
Ella puede tocar el piano
4. Right answer:
puedo comer tacos
This is the correct option because puedo is the conjugation of the verb poder that matches the first person singular in the simple present. So after this conjugation must come an infinitive verb and comer meets the requirement. On the other hand, tacos is a Mexican dish that consists of a fried tortilla, usually folded, filled with various mixtures, such as seasoned meat, beans, lettuce, and tomatoes. Finally:
Puedo comer tacos (I can eat tacos)
5. Right answer:
¿Puedes hablar con Juan ?
This is the correct answer because puedes is the conjugation of the verb poder for the second person singular in the simple present. On the other hand, hablar is an infinitive verb, the correct form of the verb that must come after the previous conjugation and con is a preposition.