题文
He was busy writing the story all the morning, pausing __________ to search for the right word.
| A．occasionally |
| B．eventually |
| C．urgently |
| D．conveniently |
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He was busy writing the story all the morning, pausing __________ to search for the right word.
| A．occasionally |
| B．eventually |
| C．urgently |
| D．conveniently |
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