英语的题目,一直看不懂Tom is a farmer,one day,it was raining heavily,bu

英语的题目,一直看不懂
Tom is a farmer,one day,it was raining heavily,but Tom went on working in the field,his purpose of doing this was to finish turning over all the soil,The next day,his uncle ______ was an expert on farming would come to teach him how to plant tomato seeds,