题文
Mr White, along with his assistants, _______ on the project day and night to meet the deadline.
| A．work |
| B．working |
| C．is working |
| D．are working |
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Mr White, along with his assistants, _______ on the project day and night to meet the deadline.
| A．work |
| B．working |
| C．is working |
| D．are working |
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