题文
Tina was hesitating about the job offer as she did not know ______ the company was an established one.
| A．whether |
| B．what |
| C．until |
| D．although |
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Tina was hesitating about the job offer as she did not know ______ the company was an established one.
| A．whether |
| B．what |
| C．until |
| D．although |
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