英语作文改错This summer,I was lucky to have joined an archaeology

This summer,I was lucky to have joined（→join） an archaeology summer camp,which lasted for ten days.During the summer camp,we visited several museums which（→where） many valuable cultural relics
were displayed.Even more excited（→exciting）,we got a chance to go to an archaeological site.It was the first time that we had（→have） been very close to ancient civilization and that I could witness how the digging was carried out.The speeches were made by famous archaeologists who informed us on（→of） much knowledge about this field.Besides,I make（→made） many friend（→friends）

第一个错误：to have joined 改 to join第二个错误which many valuable改 in which many valuable第三个错误：excited 改exciting第四个错误：to 后加such第五个错误：去掉were made 中的were第六个错误：on much改of much第七个：make改made