We had scarcely left our school ________ the accident happened.
举一反三
- We had scarcely left our school ________ the accident happened. A: before B: than C: while D: when
- We had scarcely left our school____ the rain began.
- We had scarcely left our school____ the rain began. A: before B: than C: while D: when
- I happened __________ (be) there when the accident happened.
- I happened (wait) for the bus when the accident happened.