英语、补全对话【Tow boys are waiting for the bus】

英语、补全对话【Tow boys are waiting for the bus】【Tow boys are waiting for the bus】A；Excuse me.1[ B；I'm from EgyptA;Really?You are sure to see the pyramids,aren't you?B;2[ ]I saw them many times.A;How lucky you are!3[ B;The largest pyramid is the Great Pyramid.A;4[ B;I他is146.5 meters high.A;5[ ].B;It was built about 2.560 B.C.A;the bus is coming!Thank you for telling me.B;You are welcome.