1. Correct answer:
buscan
Ellas is the subject pronoun for the third person plural in feminine form. On the other hand, from the options we know that this sentence stands for the simple present. To conjugate the verb buscar matching the third person plural in the simple present remove the ar ending and add an to the end of the word. As a result, we have the word buscan. Finally:
Ellas buscan un lápiz
2. Correct answer:
c. necesitas
This sentence stands for the third person singular because I am asking Beatriz a question. So we need to conjugate the verb necesitar matching the second person singular in the simple present. To do this, we must remove the ar ending and add as to the end of the word. Finally:
Beatriz, ¿por qué necesitas un disquete?
3. Correct answer:
d. busca
Él is the subject pronoun for the third person singular in masculine form. This sentence also stands for the simple present. To conjugate the verb buscar matching the third person singular in the simple present remove the ar ending and add a to the end of the word. As a result, we have the word busca. Finally:
Él busca un disquete.
