___ from space, the earth with water ___70% of its surface looks like a "blue blanket".
I don’t think _______ possible to master a foreign language without much memory work.
Therearetworoadsandeither ________tothestation.
Whenandwherethistookplace_________stillunknown.
Ourfamily____ahappyone.
Morethanoneanswer _______tothequestion.