Can someone please help me?

Question 11 (fill-in-the-blank worth 1 points) change this verb from the present tense to the preterite tense. tú estudias answer for blank 1: question 12 (fill-in-the-blank worth 1 points) change this verb from the present tense to the preterite tense. raúl estudia answer for blank 1: question 13 (fill-in-the-blank worth 1 points) change this verb from the present tense to the preterite tense. nosotros pagamos answer for blank 1: question 14 (fill-in-the-blank worth 1 points) fill the blank with the preterite tense of the verb in parentheses. usted a la tienda por teléfono. (llamar) answer for blank 1: question 15 (fill-in-the-blank worth 1 points) fill the blank with the preterite tense of the verb in parentheses. lolita pablo en la fiesta anoche. (hablar) answer for blank 1:

Letizia ortiz (1) (nacía/nació) en 1972, en oviedo. (2) (estudió/estudiaba) periodismo en la universidad complutense de madrid. desde que (3) (terminaba/terminó), (4) (ha tenido/tiene) varios puestos importantes. cuando la reina letizia y el rey felipe (5) (se conocían/se conocieron), ella (6) (trabajó/trabajaba) como periodista de tve y por aquella época (7) (era/fue) una de las figuras del canal. desde hace unos días, la reina letizia y el rey felipe (8) (estarán/están) en méxico y (9) (anunciaban/han anunciado) que (10) (viajan/viajarán) a otros países de latinoamérica como representantes de la corona española.

Which one of the following is the correct rhyme to keep in mind when using the spanish counterparts to this, that, those and these? a: “that” and “those” both have s’s, “this” and “these” don’t b: “that” and “those” both have t’s, “this” and “these” don’t c: “this” and “these” both have s’s, “that” and “those” don’t d: “this” and “these” both have t’s, “that” and “those” don’t