【题目】—I often have hamburgers for lunch.

【题目】The (completion/ complete) of the Great Pyramid shows the wisdom of working people.

【题目】At that time, there were no modern (machine/ machines) or equipment.

【题目】The Great Pyramid has four sides and each side is 230.4 meters (long/ length).

【题目】It's very important to stay ____when an earthquake happens.

【题目】The biggest stone weighs as (much/ many) as 15 tons.

【题目】________ is not easy for the children in the mountains to go to school every day.

【题目】The ancient king order his men (to build/ build) the pyramid.

【题目】It' necessary for us ____ hands before meals .

【题目】The Great Pyramid was considered (a/ an ) unique building in the 19th century.