. Jane Goodall with her assistants ______ for the forests to learn more about the chimps.
| A．are setting off | B．is setting off | C．have set off | D．sets off |
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. Jane Goodall with her assistants ______ for the forests to learn more about the chimps.
| A．are setting off | B．is setting off | C．have set off | D．sets off |
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