— ____ he open the door ? — Yes , please .
Up to now, they _______enough money for students who can’t afford to go to school.
As far as I know, he is seldom, ______, absent from school.
--- Would you mind if I smoked here?---I am afraid…, but if you________.
How long do you suppose it is ___________ he arrived there?
---Will you join us in the game?---Thank you,_________ .