Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the best way to have a complete sentence with the words provided.

A.  In order to go abroad, a medical report must be presented.

B. In order to go abroad, one must present a medical report.

C. Going abroad, a medical report must be presented.

D.  Because of going abroad, a medical report must be presented.