英语 帮我看看这句话有错吗,有的话帮忙改改

英语 帮我看看这句话有错吗,有的话帮忙改改
These two varieties of English have both changed a good deal in the last three hundred years or so, and naturally they have not developed in exactly the same way. However, the differences between them are not very great. Most British and American speakers can understand each other quite easily (though pronunciation can cause a few problems), and the written language is very similar indeed in the two countries. The main differences are as follows.