I don’t remember when and where I this umbrella.
---______ is the beef?----Sixty yuan a kilo. ______ would you like?
There ________ traffic jams in the air in the 2150s.
People often lose things when they are in _______ hurry.A. 不填 B. the C. a
---What can I do for you?---____________.
It’s a bad habit to ______ what you can do today until tomorrow.