When you use the present perfect, it sounds as if you are doing this activity during a long time, not only today, I think the past is better in this sentence.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
layla1234I have been checking and repairing plane's engine today ( now I am at home I have just came back and my work is finished) or is it better to use past continuous?Neither one seems right to me.