I happened (wait) for the bus when the accident happened.
举一反三
- I happened __________ (be) there when the accident happened.
- ― _____ An accident has happened. A. Where was the accident? B. What happened? C. When was the accident? D. Why did it happen?
- It happened ______ when I left the station, so I had to wait until the rain stopped.
- ______ when the traffic accident took place. A: He happened to be passing by B: It so happened to him to be passing by C: It so happened for him to be passing by D: He happened that he was passing by
- Can you tell _______?: when did it happen|when it happened|when it was happened|when was it happened