Tính  4 9 - 5 18

Choose the best sentence made from the given cues.

Question: 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.

Cho: x x 3,8 = 1,2 + 2,6 . Vậy x =

A. 1

B. 0

C. 14,44

D. 7,6