This thing … been a crucial mistake. A.has B.did C.hav e Answer and Feedback Answer:A do you want? view more test Xem thêm Share this post Some other questions you may be interested in. I regret ……………… out of college. It was a big blunder. ———————– events cast their shadow. He was punished for ——————– late. ——————- lies will not help anyone. ———————- is to believe. Children learn ——————– and writing at school. I won’t mind your ———————- early today. He left the faucet ————————– Do you know the man ————————– at the corner? ——————— done my homework, I went to play.