问题
选择题
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
答案
答案：A
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。