I am sorry to say that our food is almost______. We cannot survive if there is no one to help us.
| A.by the end | B.at the end | C.in the end | D.at an end | 
She still remembers Beijing University, ____________she graduated five years ago.
| A.from which | B. from where | C.which | D.不填 | 
_______ from what he did, he isn’t a person to depend on..
| A.Judge | B.Judging | C.Judged | D.Judges | 
The students left the room _______all the lights on.
| A.with | B.and | C.but | D.when | 
Roses need special care ______they can live through winter.
| A.because | B.so that | C.even if | D.as | 
Only in this way ____to make an improvement in the operating system.
| A.you can hope | B.you did hope | C.can you hope | D.did you hope |