I saw a tall boy enter the building just now.
I 主语；saw 谓语；tall 定语；boy 宾语；enter the building 补语；just now 状语.
举一个英语,主谓宾,定状补都有的句子,并注清楚成分
I saw a tall boy enter the building just now.
I 主语；saw 谓语；tall 定语；boy 宾语；enter the building 补语；just now 状语.