I don't think the sentence would make any sense if you would have even tried to put any "tu" in the it.
Answer:
Tengo que ir aquí todos los días a la dos
Alfredo y Lourdes no pueden ir a regatear en esa tienda
Explanation:
The answer is 2) contesto
Answer:
Prokaryotic cell :—
•They lack a well-defined nucleus, have a nucleoid instead.
•Usually have double-stranded, circular DNA.
•Do not have mitochondria.
Eukaryotic cell :—
•Have a well-defined nucleus enclosed in the nuclear membrane.
•Have a linear double-stranded nucleus.
•Mitochondria are present.