1) You seem to be rather offhand today.
你今天有点心散。
2) You aren't yourself today.
你今天有点失常。
3) Do you feel alright today?
你今天心情好吗？
4) Have you got a test today?
你今天有测验吗？
5) He is not himself today. He is not in his normal state of health or mind.
他今天有点失常。
6) Are you busy today?
你今天忙吗?
参考词条