The factory is five kilometers ______ from his house.
| A．so far | B．or so | C．far | D．way |
When I got to the cinema, the film _____ for five minutes.
| A．had begun | B．has been on |
| C．has begun | D．had been on |
Mary had promised to give me a ticket for tomorrow. She failed, ____.
| A．either | B．though | C．but | D．too |
—He must be busy doing his homework right now.
—I imagine____.
| A．that | B．to | C．so | D．it |
Lu Xun was ___________ medical student before he turned ___________ great writer.
| A．the; the | B．the; a | C．a; / | D．a; a |
The mother often tells her son to be a good boy, warning him to______ trouble.
| A．hold back from | B．keep out of | C．break away from | D．get rid of |