Answer: I think C, 1. Past perfect 2. Past perfect 3. Present perfect 4. Present perfect is the correct answer because....
Explanation:
The first sentence exclaims that the families story of the past the second one used the word "explained" as in past tense and the 3rd is a statement saying "that he likes tech in his house which is present and the 4th is a statement about him and his wife which is future. sorry if this was confusing!
A: a. sabemos || b. Sé || c. Sabe || d. Sabes
a. Conoces || b. (Can’t read) || c. Conozco || d. Conocéis
B: ¿Conocen a ellos?
Ellos saben muchas fechas históricas.
C: Él no sabe a tocar el piano.
Yo conozco a Carlos y Anita.
I dont know it but i searched it up on yt and it came out try checking there
le, is the correct answer.