They left for Sydney at seven yesterday.保持句意 They _____ _____for Sydney at seven yesterday.
问题描述：
They left for Sydney at seven yesterday.保持句意 They _____ _____for Sydney at seven yesterday.
答
leave for 是是动身前往某地的意思,同义词有 set out for / set off for / start for
所以这里可以填set out 或set off