on the apoint of和 be about to do ,be going to do ,be to do 区别?打错了,是on the point of

on the apoint of和 be about to do ,be going to do ,be to do 区别?打错了,是on the point of on the basis of 和 be based on的区别 Assume that we are on Planet-I and a rocketof mass 4350 kg is projected vertically upwardfrom the surface of this planet.It stops at apoint 9360 km from the surface of the planet.Find the kinetic energy of the rocket imme-diately after it is fired of Be on the side of 什么意思 be on the tip of my tongue It__(be) on the tenth of June. be on the increase of products是什么意思? the pair of glasses on the desk (be)mine ON the front of和ON front of的区别 on behalf of 和on the behalf of 区别 on the top of 和on top of的区别 on the basis of和 on basis of的区别 There __(be) two bottles of water on the table. be on the point of doing怎么用 there___(be) a map of China on the wall Look!A number of students ____(be) on the playground. There___（be）a set of keys on the table. Three pieces of bread _____ (be) on the table.