摘要：before
网址：http://m.1010jiajiao.com/timu3_id_2553381[举报]
Before leaving home, make sure to turn off the electricity, lock the door, ______ the windows open.
- A.and not to leave
- B.instead of leaving
- C.rather than leave
- D.and not leave
Before liberation(解放)my grandpa ________ from morning till night．
- A.was made to work
- B.made to work
- C.made to be worked
- D.was made work
Before building a house, you will have to ________ the government's permission.
- A.get from
- B.follow
- C.receive
- D.ask for