________ caused the accident is still a complete mystery.
举一反三
- ()caused the accident is still a complete mystery A: What B: That C: How D: Where
- _______ caused the accident is still a complete mystery.[br][/br][br][/br] [br][/br] A: What B: That C: How D: Where
- Unfortunately, those who_____ the accident cannot recall what happened, Therefore the cause of the accident remains a mystery.
- What caused the accident ______ on the road.
- —————————— is not clear. A: what caused the accident B: what did cause the accident