你不小心踩到别人时,你应该对他(她)说: A.It’s great. B.I don’t know. C.I’m sorry.
The teachers never arrive late for work from Monday to Friday.
My uncle is leaving for Nanjing at 10:00 tomorrow.
What’s your sister doing at the moment?
We should eat a balanced diet to keep healthy.
What’s the matter with you?