I a in duty today.I can't look_my sister

I a in duty today.I can't look_my sister i will off my duty today~we can have a chat if we have free today is my on duty .I help my teacher ( ) many things.A.in I am ___ duty today I can't eat a___ .I'm not feeling well today I have a headac 英语翻译I am on duty today.I get up early in the morning,and go I'm on duty today翻译 英语翻译Hello,my dear teacher and classmates.I'm on duty today!T Can I have a （）（medicine）examination today?I don’t feel well I have__chores to do today that I can't go out A.so much B.s Are you happy today?A.Yes,I am.B.Yes,I can.C.No,I can't.(提示： A:We can talk about the world today B:I don't think it can w