... . is that a chicken stands up to lay its eggs.A. Many people dont realize B. What many people dont realize C. It is that many people dont realize D. Because many people dont realize Bài 5: ... important. Accounting for over 50 percent of all energy consumed, it (3- is / are / is being) so essential that, without petroleum, we (4- would be faced / will be faced / faced) with economic disaster.Ofcourse, ... chairs and table legsas it cleans your floor. And if a person or your pet dog or cat comes too close, it stops automatically. TheBryson D 838 Robot Vacuum Cleaner comes with electric batteries,...