When I was on the stage the next day,I was so nervous that I shook like a leaf.the next day放在这是个什么用法?求详解.

怎样选择判断用that而不能用when（强调句和定语从句）It was on the morning of May 1st when I met my friend at the airport.（ when为什么错?）It was on the morning of May 1st that I met my friend at the airport. 英语改错问题It was on October 1st 1949 when the People's Republic of China was founded. I was in Beijing on the day when he arrived. The PLA was founded on August 1st.中文? 英语：根据句意,和首字母的提示填空1.The c_______ is the key to the 21^st century.2.When I was ten years old,I became i______ in swimming.3.S_______ on the Internet is very interesting.4.Getting information on the Interent is very c____ It happened when I was walking on the road this morning.中when的用法 43.I saw the accident _________ when I was walking on the road this morning . When I was on the track team,I used to run the quarter mile I thought that it mattered,was when and where I said,then I realized ,the on ____ I was falling asleep,there was a loud knock on the door.(when/while) when i was waling on the road,i happend to /happening to see him yesterday when i entered the room,i was surprise to see anake on my bed.改错 I was born on January 1st,1992.（on January 1st提问） ______ ______ ______ ______? I lived on the Happy Farm when I was a child.（对on the Happy Farm提问）快 1）i dropped the baton on the groud when i was——it on to Tim when i left the room,the light was still on.翻译 I was __of crossing the road __the car accident happened.A .on the point ;that B.on the point;when i was ___ seventy when i was on the highway.A.going B.doing C.speeding D.starting