The city has improved a lot _________ I came here a few years ago. A. since B. for C. when
–Would you like some coffee or tea? –________. Water is OK.
The young man used to_______ to work, but he is used to________ to work now.
–Can you hear me? –No, I can’t. Would you please speak________?
Today is my mother’s ________ birthday. I will buy her a gift.
–Can I park my car here? –No, look at the sign. Which sign does the second speaker refer to(指)?