砌筑水泥和普通水泥:"There is a bird and two ducks on the grass."这句和刚才这句有区别吗?

来源:百度文库 编辑:杭州交通信息网 时间:2024/04/28 18:13:36
"How much is that robot and that doll?"中"is"的用法对吗?

有,前一句是There be的结构,"近水楼台先得月",谁在前谓语动词就跟谁;而后一句是强调的那个robot,只是那个robot,谓语动词就是单数

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哪句?