. --- He has to finish the experiment today. He must be in the lab,________?
---That s quite possible.
| A．mustn't he | B．won't he | C．doesn't he | D．isn't he |
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. --- He has to finish the experiment today. He must be in the lab,________?
---That s quite possible.
| A．mustn't he | B．won't he | C．doesn't he | D．isn't he |
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