题目内容
(请给出正确答案)
[主观题]
They have ______________ on a journey round the world.A.set offB.set backC.set upD.set a
They have ______________ on a journey round the world.
A.set off
B.set back
C.set up
D.set aside
查看答案
如果结果不匹配,请 联系老师 获取答案