Grammar test: Fill up, in, and out

Fill ___ the entire circle.

in

up

out

"in" is used when there's blank or space to fill. Usually used in test directions like fill in the blank.

Johan, fill ___ his water bottle.

in

up

out

"up" is used in bottle, cup or any container with a liquid. Filling the container up.

Kindly fill ___ the form before
leaving.

in

up

out

"out" is the correct preposition to use that is mistakenly replaced by "up" when it comes to this kind of sentence.

Now, it is your turn to answer.

Fill __ this form. Make sure that
you fill __ all the blanks before
you fill __ your tank.