1. OFFER(an offer is difinite promise to be bound on specific terms and must be distiguished from the mere supply of information an from an invitation to treat)In the law of contract, an offer is a definite promise to another to be bound on specific terms. It is capable of (能够) acceptance so as to form a binding contract.An offer can be made to an individual, a class of persons or to the world at large and it can be accepted by the conduct of the offeree ( Carlill v Carbolic Smoke Ball Co