When radiators first started making their way into homes over a hundred years ago in the Victorian era, their style credentials left a lot to be desired. Back then, they were great hulking iron contraptions, designed to take advantage of the theory of heat conduction – where the heat energy...
Do you know who did it? A. cleaned B. was cleaning C. has cleaned D. was cleaned 【答案】D 【解析】考查一般过去时的被动语态。句意:由句中的时间状语 yesterday “昨天”可以判 断句子是一般过去时,本句的主语 classroom 不能执行后面的动作 clean,要用被动语态来 表示主语是动作的承受者。可...
Lighting, heating and cooling spaces Lighting, radiators, heat pumps, air-conditioning, other Cooking/eating and leisure activities ICT, Audio/video, kitchen appliances, electric cooking, other Domestic cleaning practices Dishwasher, washing machine, tumble dryer, vacuum cleaning, ironing 2.4. Analytical...