work hard and you'll be able to go to college.(改为同义句) 2,the end-of year party lastedtonight(改为同义句） the end-of-year party—— end—— 11 p.m.last night第2题错了，是the end-of year party ——end——11 p.m.last ni

work hard and you'll be able to go to college.(改为同义句) 2,the end-of year party lastedtonight(改为同义句） the end-of-year party—— end—— 11 p.m.last night第2题错了，是the end-of year party ——end——11 p.m.last ni
work hard and you'll be able to go to college.(改为同义句) 2,the end-of year party lasted
tonight(改为同义句） the end-of-year party—— end—— 11 p.m.last night
第2题错了，是the end-of year party ——end——11 p.m.last night(改为同义句）

work hard and you'll be able to go to college.(改为同义句) 2,the end-of year party lastedtonight(改为同义句） the end-of-year party—— end—— 11 p.m.last night第2题错了，是the end-of year party ——end——11 p.m.last ni
应该是：
1 If you work hard,you will be able to go to the college.
如果你认真学习,你将能上大学.
改为主将从现的条件状语从句.
2 The end-of year party (was) end (at) 11 p.m.last night.
年末派对昨晚11点结束.
这里end是形容词,意思是结束的
具体几点几分前用介词at,

work hard and you can go to college. be able to = can
The end-of-year party continued tonight. last=continue
The end-of-year party ended at 11p.m. last night.