先弄懂两者的用法：
have been指曾经到过某地（已回来）
have gone 指人去了某地（人不在这里）
4have been
5 have gone
6 has gone
7 has gone
8 have gone
9 has gone
10 have ,been
11 has gone
12 have been
13 has gone
14 have gone
have been
15 has been
16 have gone
17 has gone
18 has ,been
19 have ,been
20 has ,gone