Why can't i smoke here?- At no time is smoking in the meetin

Why can't i smoke here?- At no time is smoking in the meetin -why can't i smoke here?--At no time 【】in the meeting room? -Could I smoke here? --Look at the sigh "No smoking" Can I smoke here?-----No,at no time ___in the reading room. 1 -Why can’t I smoke here The sign "No smoking" m____we mustn't smoke here The sign "No smoking" means we mustn't smoke here ①—May I smoke here?—No,you only do that in the smoking room. Smoking is b_____ in the library.you mustn't smoke here. -( )I smoke here?-No you mustn't.A.Can B. No smoking means we mustn't smoke here为何是NO smoking 不能是Not s This is no-smoking zone.Can't you see the sign?- Sorry.I()it