The process of producing electricity may also give out CO2, _______ you heat your house with electricity instead of charcoal

Recently we held a discussion about what we shall use for power when all the oil in the world has _________

我的衣服是小号，爸爸的衣服是大号，妈妈的衣服是中号，依次用英语表示是___.

licemen ______ the house again and again, andfinally found the evidence

18The dying man is _____ the help of the doctor