What caused the accident remains unknown.引导词做了什么成分
What caused the accident remains unknown.引导词做了什么成分
__ caused the accident remains unknown.(填连词)
What caused the accident?主语?
1.What caused the accident ______ on the road.
The traffic police must ___ what caused the accident.(found
what caused the accident and who was responsible for it ( )
What caused the accident and who was responsible for it_____
—What caused the accident —It was my fau
.What caused the accident and who was responsible for it____
another one?what caused the accident this time?
那WHAT为何引导宾语从句,做什么成分
what 可以引导宾语从句吗?做什么成分或不能引导?