She cared more about her students than her own health. That’s why two years passed _____ she was treated for breast cancer.
| A．since | B．before | C．after | D．until |
---Remember the first time we____ , Ed ?
---Of course, I do. You _____ a song on the stage.
| A．have met;sang | B．met;sang | C．met;were singing | D．have met;have sung |
.---I’m sorry, but there’s no smoking room in this section on the train.
---Oh, I _____ that, and I won’t smoke again.
| A．don’t know | B．won’t know | C．didn’t know | D．haven’t known |
The advertisements in newspapers help to cut the _____ of making the newspaper.
| A．price | B．pay | C．costs | D．value |
The _____ of the exam nation show that you have all made great _____.
| A．result, progress | B．results, progress |
| C．results, progresses | D．results, progresses |
I love _____ history because it gives us _____ knowledge of past event.
| A．the, a | B．/ , a | C．/ , / | D．a, the |