问题

The Dongying-Hainan airline for about 5 months. I have taken the flights three times.

A:is open
B:has opened
C:has been open
D:has been opened

正确答案是：

标签： been , dongying , hainan

同类题型

Molly plays _____ her friends every day.

Must I move the table? No, you _____________.

There is ______ “u” and ______ “s” in the word “Sue”.

Which would you like,tea or coffee? — Either _____ OK, but I prefer coffee _____ milk. [ ]

I’m proud to be able to help __________people.