Question

帮忙看一道选择题

Once ____ a difficult and even dangerous place, Vitenam is now a friendly destination that welcomes visitors from all over the world ____.
A. considered; visiting B. considered; to visit
C. considering; visiting D. considering; to visit
要详细讲解哦

Answer 1

considered后面少了个as吧？
选B。因为Once后面省略了it is ，这本来是个被拆唯乱动语态it is considered as a difficult and even dangerous place。后面一旅档个空是用 to +动词原形作定语山祥

Answer 2

B
to do 表目的

Answer 3

B

Answer 4

B

Answer 5

B