The correct word to fill the first blank is vengan, and the correct word to fill the second blank is dejen.
Ojalá que mis amigos vengan a mi fiesta de graduación este mayo. Espero que ellos me dejen saber pronto.
Trinity hall Cambridge y University of Oxford
C, it would be A, but the question said which was built first.
Que te gusta hacer? is the answer
Hope that helps!:)