Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to the original sentence in each of the following questions.
This switch must not be touched on any account
A . on no account this switch be touched
B. on any account must you not touched this switch
C. on no account must this switch be touched .
D. on any account this switch must be touched .
Đáp án là C.
Cấu trúc đảo ngữ: On no account + auxiliary + S + V.