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填空题
The engineers spent the whole night (work) ____ on the new device.
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解析:
本题考查动词用法。句意:这些工程师花费了整整一个晚上研究新设备。spend time (in) doing sth.为固定搭配。故填入working。
本题考查动词用法。句意:这些工程师花费了整整一个晚上研究新设备。spend time (in) doing sth.为固定搭配。故填入working。
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