— Your aunt often walks the dog in the morning.— Yeah, ___________ bad weather stops her.A. when B. unless C because D. since
________ city would you like to live in, Beijing,Shanghai or Chongqing?
If prices rise too high, the government has to do something ______ it.
— How long have you _______ this book? — About ten days.I _______ it last month.
— When will the second class begin? — _________ two minutes.
— I’m sorry I can’t find the library book anywhere. — So…I’m afraid you have to _________ it.