n’t put your cell _____ the edge of the table,or it will fall off

Look, here’s an English book on the desk, Is ityours? — No, it isn’t _______. It must belong to _______.

However, at times this balance in nature is disturbed, ____ a number of possibly unforeseen effects.

I want to know whether the day I am looking forward to will come today or tomorrow.— Does that make any difference?

use my handkerchief to wipe the table，gentleman—Oh, I’ m very sorryI________clearly