The operation is _____ success and the patient is now out of _____ danger.
| A．a, the | B．a, 不填 |
| C．不填, the | D．不填，不填 |
29. Can you say _____ certain when he will come here?
| A．at | B．for | C．with | D．In |
28. He is too careful _____ his money; he never buys a drink for us.
| A．to | B．at | C．for | D．With |
27. You should write the first letter of the sentence _____ capital one.
| A．on | B．with | C．in | D．At |
26. I called _____ you last night, but you were out.
| A．with | B．on | C．at | D．in |
25. The train leaves at 6:00 p.m., so I have to be at the station ____ 5:40 p.m. at the least.
| A．until | B．after | C．by | D．Around |