You can’t visit the United States unless you get a...

Câu hỏi: You can’t visit the United States unless you get a visa.

A. If don't you get a visa, you can't visit the United States.

B. You will get a visa if you visit the United States.

C. If you got a visa, you can't visit the United States.

D. You can visit the United State if you will get a visa.