If you really want yourself to be in good health, you must always so much.
A. not; be smoking
B. not; have smoked
C. not; to smoke
D. be not; smoking
网友回答
(答案→)A. not; be smoking
B. not; have smoked
C. not; to smoke
D. be not; smoking
解析：must not always be doing sth. 表示“不要老是做谋事”，含有埋怨、指责、反感等感情色彩。