q20-fe1fdfd5
0:20
1 Luidsprekere
1 Hoofstukke
8 segmente
Luidsprekere
Hoofstukke
-
0:00Hoofstuk 1: Number 20. 17s · Speaker 1
Number 20. When does the keynote speaker's presentation start? A. In the main auditorium. B. It's listed in the event program. C. He's a renowned speaker.