can you help me with 2 and. 3 i’m in zoom and i’m pretending my mic broke and and he said he will come back to me later help

Calcula la concentracion de hidronio en la lluvia ácida si el ph es 4.35

Question 6 (fill-in-the-blank worth 1 points) change this verb from the present tense to the preterite tense. yo pago answer for blank 1: question 7 (fill-in-the-blank worth 1 points) change this verb from the present tense to the preterite tense. yo mando answer for blank 1: question 8 (fill-in-the-blank worth 1 points) change this verb from the present tense to the preterite tense. miguel y ana llegan answer for blank 1: question 9 (fill-in-the-blank worth 1 points) change this verb from the present tense to the preterite tense. ustedes lavan answer for blank 1: question 10 (fill-in-the-blank worth 1 points) change this verb from the present tense to the preterite tense. tú lavas answer for blank 1:

Carla: ayer te mandé un correo electrónico. ¿lo jaime: sí, recibí tu correo electrónico. a. mandaste b. recibieron c. mandaron d. recibiste