Answer:
1) <em>Esta</em>, 2) <em>Aquel</em>, 3) <em>Aquella</em>, 4) <em>Aquella</em>, 5) <em>Estas</em>, 6) <em>Ese</em>, 7) <em>Estos</em>, 8) <em>Esos</em>, 9) <em>Esas</em>, 10) <em>Este</em>
Explanation:
This exercise consists in selecting the appropriate possesive article according to the number, gender and associated pronoun of the substantive:
1) <em>Esta</em> tarjeta de crédito. (3rd Person Singular - Female substantive (la tarjeta de crédito))
2) <em>Aquel</em> centro comercial (3rd Person Singular - Male substantive (el centro comercial))
3) <em>Aquella</em> vendedora (3rd Person Singular - Female substantive (la vendedora))
4) <em>Aquella</em> dependienta (3rd Person Singular - Female substantive (la dependienta))
5) <em>Estas</em> gafas (3rd Person Plural) - Female substantive (las gafas))
6) <em>Ese</em> mercado (3rd Person Singular - Male substantive (el mercado))
7) <em>Estos</em> zapatos de tenis (3rd Person Plural - Male substantive (los zapatos de tenis))
8) <em>Esos</em> cinturones (3rd Person Plural - Male substantive (los cinturones))
9) <em>Esas</em> medias (3rd Person Plural - Female substantive (las medias))
10) <em>Este</em> sombrero (3rd Person Singular - Male substantive (el sombrero))