are you ( ) now?A.online B.the online C.a online D.the internet

From now on,You are【My Valentine.】. Are you on your holiday now?是什么意思 Are you ____ holiday now?(on,having) You are on a what are you doing now I'm__,Mum.A.getting dressed B.dressing Cputting on Are you a teacher now?回答 can you see a chimney ( ) the roof of the house now,you are ( ) .what can i do?填（on,over) You are now talking on Chinese什么意思 Are you _____________ holiday now?(on have having) In a meeting just now what are you doing now? where are you now? Are you free now are you free now Are you free now? Where are you now? Now you are lonely now you are talking Are you b() now?