Importance of social networks is what it is saying
It is said tu tureno for your turn
Last and first one are true
Answer:
Intonation:
¿Manos a la obra?
Tag Questions:
Manos a la obra, ¿no?
Explanation:
First one is an intonation as there is a pitch in the statement
Second is a tag question therefore using ¿no? at the end