科研之友
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摘要
<正>一、主语从句例1_____makes the adobe dwellings admirable is their ability to"air condition"a house without electricity equipment.解析:填What。此处缺少主语,部分同学可能会误填It/That/Who/Which等。这里的连接词What在主语从句中作主语。例2 It is important_____kind of call we make or letter we send.
