Nih ya.
aya : devin, do you understand what Mira said?
devin : yes. she said she just have an information about the talent show and she said we must present something for the talent show.
aya : ok thank yu.
devin : you are welcome.

A : do you understand what he say ?
b : yes, I do.
a : what he say ?
b : he say we use english in english class