The illness from which Mary is suffering has now been _____ as hepatitis (肝炎).
| A．diagnosed | B．determined | C．deduced | D．discovered |
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 |
24. --- How did you go to work yesterday?
--- I went to work _____ my friend’s private car.
| A．by | B．in | C．on | D．At |
23. It is said that a bridge is being built _____ the river.
| A．under | B．to | C．over | D．At |