第一句:
He 主语;did not come 谓语;That 主语;is 谓语;why he did not know 表语
第二句:
Luckily 状语;the 1989 earthquake 主语;did not happen 谓语;in the center of town 状语
第三句:
There 主语;are 谓语;so many people 主语(这是there be句型的真正主语);in the hall 状语;that it is hard for me to find him 与前面的so构成so...that的状语
第四句:
No matter how difficult the task may be 这一整个句型是状语(让步状语);we 主语;must fulfil 谓语;it 宾语;this month 状语
第五句:
Go 谓语(这是一个祈使句,省略了主语);back 状语;where you came from 状语
第六句:
We 主语;must do 谓语;whatever the people want us to do 宾语
第七句:
Would you 主语;please 插入语;pass 谓语;me 宾语(间接宾语);the cup 宾语(直接宾语)
第八句:
Do you 主语;know 谓语;the latest news 宾语;about him 表语(介词短语可以当表语)