I think you should go back to your plan, which is much more practical than the present one．
| A．random | B．abstract | C．original | D．ridiculous |
______ we had read your letter ______ the true state of affairs.
| A．It was until; that we understood |
| B．It was not until; that we understood |
| C．Until; did not we understand |
| D．Not until; we understand |
Take the medicine and have a good sleep, but if the pain continues, ______ your doctor.
| A．confirm |
| B．consult |
| C．consider |
| D．convince |
The earlier settlers learned to farm the land through ______ and error.
| A．test |
| B．trial |
| C．experiment |
| D．try |
The moment she heard of the news that her son was involved in the crime, she ______ pale.
| A．went |
| B．got |
| C．changed |
| D．appeared |
I didn't see you at the meeting. If you ______ , you would have met my brother.
| A．has come |
| B．did come |
| C．had come |
| D．came |