Choose the correct answer (bold text), according to the video:
a. Mark and Betty are scientists/teachers.
b. Mark is an inventer/a painter and Betty is his assistant/his secretary.
c. Mark is/isn't making a present for his cousin George.
d. Mark connects a carton of milk to his mobile phone and it becomes a radio/a speaker.
e. George doesn't like/loves milk and music.
f. Mark usually/never wears ties.
g. Mark hates vegetables/meat.
h. George loves meat/vegetables.
i. George is staying for dinner/for a week.
