Be/ doctor/ she/ know/ what/ side-effects/ medicin...

Câu hỏi: Be/ doctor/ she/ know/ what/ side-effects/ medicine/ have//

A. Be a doctor, she knows what side-effects the medicine can have.

B. Being a doctor, she knew what side-effects the medicine could have.

C. Having been a doctor, she had known what side-effects the medicine could have.

D. To be a doctor, she knows what side-effects the medicine might have.