The “Warning” reads: “Under no circumstances be kept near fire!”
A. the chemical should
B. the chemical shouldn’t
C. should the chemical
D. should the chemical not
网友回答
A. the chemical should
B. the chemical shouldn’t
(答案→)C. should the chemical
D. should the chemical not
解析：句意：警告上写着决不要让化学物质离火太近。under no circumstances决不；这里它放在句首句子用部分倒装，故选C。