（年北京市西城区高三5月二模试题）25. The report aims to explain how these conclusions ______.
| A．were reached | B．had been reached | C．have reached | D．had reached |
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Shopping on line will take the place of shopping in stores, won’t it?
| A．commonly | B．especially | C．finall y |
D．regularly |
Had I mastered the statistic technique, a large amount of time and, energy .
| A．was avid | B．had been saved | C．will be save d |
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It is meeting side effect the new medicine will bring about, although the experts have tried it on about 2,000 patients.
| A．that | B．what | C．whether | D．which |
Now methods need to be to use the existing water resources, for example, turning sea water into fresh water.
| A．developed | B．assumed | C．abandoned | D．purchased |
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