The reason ______ the accident occurred is still unknown.
A: why
B: what
C: how
D: which
A: why
B: what
C: how
D: which
举一反三
- This is the place ( ) the traffic accident occurred A: where B: when C: how D: What
- The reason ______ their absence, as I know, is ______ they had an accident on their way. A: that, why B: why, that C: for, that D: for which, because
- 5W1H分别是？（） A: what、where、when、who、which、how B: what、where、when、why、which、how C: why、where、when、who、which、how D: what、why、when、who、which、how
- ()caused the accident is still a complete mystery A: What B: That C: How D: Where
- It was simply for a special reason ____ I didn't tell you the truth at that time. A: why B: what C: which D: how