The sentence should be: "Please keep this door closed."
No.
The correct sentence should be: "Keep the door closed."
Has closed? " The portal to the deep dark hole 'has closed'" :-)
a poloygon that does not curve or cross and is closed
it is not correct, it is you had math, or you did math.
Math sentence;1+2+3 Math phrase: If i had 1 sock and i got 2 more socks i would have 3.
The closed system prevented the flys in.
he closed the door on his face
The doorman quietly closed the outer door.
Closed circulation is a phrase that the person asking this question doesn't know how to use in a sentence
Registration has already closed for the 2009 World Math Day.