Lucy will leave for London on business in three hours．（对划线部分提问）
________ ________will Lucy leave for London on business?（）（）

Mr． Wang hardly spoke a word at the meeting yesterday．（改为反意疑问句）Mr． Wang hardly spoke a word at the meeting yesterday，（）（）？ 点击查看答案

These are interesting story books．（改为单数句型）（） 点击查看答案