I had just got up and was about to cook my breakfast__________ the telephone rang, but it was hung up __________ I could answer it.
| A．while ； when |
| B．when ； as |
| C．as；after |
| D．when；before |
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I had just got up and was about to cook my breakfast__________ the telephone rang, but it was hung up __________ I could answer it.
| A．while ； when |
| B．when ； as |
| C．as；after |
| D．when；before |
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