He was so excited after hearing the news and（THAT） he could not fall asleep immediately.错误是and，前面是SO，所以用THAT连接，如此---以致拍兆2,You will not able to pass the examination unless you work harder than you do now错误是will not able to（去掉ABLE TO 3.Only when it started to rain he noticed that he had left his raincoat somewhere.错误是he noticed（DID HE NOTICE，ONLY 部分在前，倒装）4.After his graduation from the university,he has worked in a famous computer company.错误是After（芦贺盯SINCE，后面完成时，所以前面陪和用SINCE，自从）
1 改为so， so...that... 表示 如此... 以至于... ，固定搭配。2 will not be able to be able to 表示 能够做某事，able 是形容词，前面必须使用be3 did he notice only加时间状语放在句首，句子要用部分团派模配倒装。4 Since 表示自从，与完成时塌码贺搭配。
1.and改成that2.not和able之间加be3.he noticed改成did he notice4.After改成Since