1.it takes us about three days to travel from the Earth to the Moon by spaceship.
it is about three days from the Earth to the Moon ()()().
2.it is very hot,don't close the window.
it is very hot ,please ()the window().
3.there is no plant life without light.
()()()()light,there is no plant life.以上3题全改为同意句,根据下面的提示补全既可.