be/ doctor / she / know / what /side- effects / medicine / have

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Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is best- built from the prompts given.

be/ doctor / she / know / what /side- effects / medicine / have //

be a doctor , she knows what side - effects the medicine can have

being a doctor , she knew what side - effects the medicine could have

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

to be a doctor , she knows what side - effects the medicine might have

Giải thích

Đáp án là B.

Câu đầy đủ là: She was a doctor, she knew what side - effects the medicine

could have.

Với hai vế có chung chủ ngữ, ta có thể lược bỏ chủ ngữ của một vế và động từ biến đổi về dạng V-ing.