1952 was a year of the Egyptian Revolution, which ended in the overthrow of the Egyptian King (who abdicated in favour of his newborn son in the hopes of keeping the dynasty, but the son was also removed from the position later)
and established the Republic of Egypt.
"The house doesn't have a basement" is the the sentence that uses the correct form of the verb.
You haven't given us a source to take from
Busuu is really good, i love it