✔ 最佳答案
If Man agreed to make the offer opened for 3 days waiting for Lin to accept within 3 days, then, there is an obligation being made between Man and Lin. If Lin accept the offer within 3 days, then there is an acceptance to Man's offer and thus a valid contract being made. If Lin does not give Man his intention after 3 days, then the offer made by Man is then lapsed, There is no contract being made between Man and Lin and Man could sell the phone to anybody accepting his offer.
In this issue, Man does not give an offer opened to Lin for 2 days and Lin does not accepted the offer immediately, there is no contract being made binding each party. Man could therefore sell the phone to David.
No. The buyer is still demanding the seller for further details of the phone. There is no offer and acceptance as further details is still required. Hence, no contract at all.
2009-11-04 09:41:03 補充：
1. If both parties agreed that the offer will expired after 3 days and, if Man sell the phone before asking Lin for any acceptance, then Man is in breach.
2009-11-04 09:41:10 補充：
2. It all depends on the terms of the offer and acceptance. If Man demands immediate acceptance, then the offer will lapsed if Lin does not accept but make an counter offer of 3 days. Man could sell the phone to any other person as counter offer means no contract at all.
