. we’ll be able to drive a car by electricity, solar energy in about ten years.
A. Fortunately; driven
B. Eventually; power
C. Luckily; manded
D. Hopefully; powered
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解析：考查副词及动词的用法。Fortunately，Luckily 幸运地，Eventually最后，终于Hopefully，充满希望地，drive 驾驶，mand要求，命令，power权利，电，动词充电。句意：大约十年之后，希望我们能开着由电，太阳能充电的轿车。故选D。