题文
The girl had hardly rung the bell __________ the door was opened suddenly, and her friend rushed out to greet her.
| A.before |
| B.until |
| C.as |
| D.since |
推荐试卷
The girl had hardly rung the bell __________ the door was opened suddenly, and her friend rushed out to greet her.
| A.before |
| B.until |
| C.as |
| D.since |
试题篮
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