What kind of paper is this? Do you want to write an applied paper?

Let me help you analyze it.

1. Offers and commitments in the formation of a contract. The promise changed the terms of the offer. Is it a promise? This is not well written, but if you are responsible, download the relevant ones and copy them down.

2. It should be a maritime law issue, but the subject conditions are too simple and should be classified as a contract law issue. That is, after the goods are delivered to the carrier, the risk is transferred from the seller to the buyer.

3. Green trade barrier is a problem of international economic law, but if it involves contract law, it is how the two parties agree on the responsibility sharing in the contract.

Almost. The topic is very simple. Just copy it and it will come out. ...