Someone is Knocking at the door. A: SVA B: SVC C: SVO D: SVOA

The cat caught a mouse. A: SVO B: SVOO C: SVC D: SV

They have been singing for half an hour. A: SV B: SVO C: SVC

They found the dead boy. A: SV B: SVO C: SVOO D: SVOC

They found the boy dead. A: SVO B: SVOA C: SVOO D: SVOC

We have proved the method very effective. A: SV B: SVO C: SVOC

It cost me three dollars. A: SV B: SVO C: SVOO D: SVOC

He will come here tomorrow. A: SVO B: SVC C: SVA D: SVOO

I found the book easily. A: SVO B: SVOA C: SVOO D: SVOC

The leaves are yellow. A: 主-系-表（LSP） B: 主-谓-宾（SVO）