This is how your sentences will look: (Given that they are in present tense)
Usted quiere un gato.
Mis hermanas visitan a mis padres.
Slide
conoces
saben
here the answer for you my friend
1. unos
2.un
3.unas
4.una
5.una
6.unas
7.un
8.unos
9.un
10.unas
11.una
12.un
13.unos
14.unas
15.un
16.unos
17.un
18.unas
19.unos
20.unas
21.unos
22.un
23.una
24.un
25. unas
26. una
27.un
28.un
29.un
30.unas
Answer:
2. How old are you?
3. When is your birthday?
4. Where do you live?
5. What's your phone number?
6. What's your email address?
7. What do you like to do?
8. In what grade are you?
9. Do you have any job?
10. Who are your family members?
The answer is :
Una carpeta
Necesito una carpeta para guardar todas las hojas de papel.