This is Deuter, a software I have created that lets you practice German. It will only accept answers in British English: at the, not on the etc. Also, it does not accept numbers- so to write "4 bottles" you would need to write "Four bottles". In addition, every answer must be written in lowercase.
Here is the link to the worksheet I used to get the words: https://dmrzy3d5g6eng.cloudfront.net/uploads/attachment/file/d3043beaf674b53141b23eff4d64fd7f/stimmt1_k3_voclist.pdf