[-B60] He _____ his experiments and made a great contributio

[-B60] He _____ his experiments and made a great contributio he invented the car and made a great contributio 高一英语选择He made _____ experiments to prove his theory and the He_______his experiments and made a great contribution to ou he made a very big mistake ,and,_____,he lost his job.as a r He has made a great p______ in his math. ____of his parents,he made great progress. Qian Xuesen is a great Chinese scientist___great contributio David has made great progress recently.____,and _____.A.So h 英语选择题when _____ about his plan, he said he hadn't made any.A A was a great person .He made China richer and stronger he made great progress,making his parents happy.