When a disaster occurs, all people, ________ they are old or young, rich or poor, try their best to help those in need.
“_____ when does the pub stay open?” “About midnight.”
___you understand this rule, you will have no further difficulty.
“Shall we stop for lunch _____ shall we drive on?” “Let’s stop for lunch, but the driver can’t drink _____ drive.”
____ you work, you must always serve the people heart and soul.
____ makes mistakes must correct them.