问题
选择题
. 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
答案
答案：B
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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
答案：B