The first one:
A las tres, Pepe hablo con su novia por teléfono.
The second one doesn’t make much sense, it would be saying: I bought some black pants and my friend Mateo like a lot of money.
I added words in parentheses to make it make more sense:
Yo compré unos pantalones negros y (a) mi amigo mateo le gusta mucho (el) dinero.
The third one:
Después, nosotros comimos cerca de un mercado.
Duhdhdjdjdjhdjdjxjxjbxbzghshsbzgusjs scythe dbhduebdvdi really don’t know the answer
D = táctica I’m pretty sure
Té cambias antes del desayuno
Elisa “trabaja”en el restaurante.
It could be trabajo too, but trabaja is the most common. Elisa trabaja en el restaurante means that she works on the restaurant, and trabajo means the she was used to work there