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 buyer：（）

A.Thank the booth attendants.

B.get a brochure or sample without making a connection

C.accept the greeting.

D.take a seat

E.acknowledge the presence of visitors.

正确答案：Thank the booth attendants.accept the greeting.