交易成立的一般程序中，下列（）是合同交易成立的的基本环节，也是合同成立的必要条件。
BD
暂无解析
Thefanswereveryexcited______DavidBeckhamcametotheshow.
Ihopemyfather____askmeaboutmymarks.
Lance:Marydoesn'tlookwell.
Lee:______.
Dr.Yangworked______threedaysago.
InfacttheSwedendidnotunderstandthethreequestions____wereaskedinFrench.
