1-I'm in a meeting, It is not good time to answer your phone, I'll call you back later
2-My parents are nearby, It is not good time to answer your phone,How about call me later?
3-Is that OK to answer my call?
4-How many hours is the train delayed?
5-The train has been delayed for half an hour
1。I'm in a meeting, this will not convenient to answer your call, I'll call you back
2。My parents are at home / my parents in my side, this will not convenient to answer your call, you will call again.
3。You will come to the phone?
4。The train was delayed several hours?
5。The train has been delayed for half an hour