Yes, this is grammatically correct.

Some examples of communicable diseases are:-
1. Hepatitis A
2. Hepatitis B
3. Ebola
4. Flu
Hi,
<span>A Jorge le gusta tararear en la clase de inglés: Jorge (George) likes to hum in English class.
A Jorge le gusta bocetar en la clase de inglés: Jorge (George) likes to draw in English class.
</span>
Answer:nosotros
Explanation:
though there isnt any bolded words in you question i assume you mean “mi amigo juan y yo” in english thats my friend juan and I, which could be replaced by we. We in spanish is nosotros.
Answer:
It means and translates to: "Who is single?" as in not married.