分析括号内的句子结构1.【though i was unwilling to】 ,i decided to give i

分析括号内的句子结构
1.【though i was unwilling to】 ,i decided to give it up
2.this is something 【that you should keep in mind】
3.【hold on】 the doctor will be here presently
4.I saw her 【playing the piano】 just now
5.beijing,【the capital of china】,held the 2008 奥林匹克
6.shanghai is no longer 【what it used to be】