A. more international guests

B. extra time for questions

C. additional locations for events

A. are selling out quickly

B. have been reduced in price

C. must be booked in advance.

A. a sporting competition for adults

B. an educational event for all ages

C. a play day for young children

A. should wear appropriate clothing

B. must keep to the proper path

C. need to arrive at a certain time

A. do not happen often.

B. have never happened before.

C. may happen more regularly in future