Directions: Choose the right things from the information box below for a seller/buyer to do at a trade fair. Pay attention, there are some things neither side should do.The seller:___

A.acknowledge the presence of visitors.

B. take a seat.

C.accept the greeting.

D.get a brochure or sample without making a connection.

E.Thank the booth attendants.

F.Ask specific questions.

正确答案：AF