As you know, there are a few formalities to be _____ before you enter a foreign country.
I don’t doubt ______ for the journey by doing jobs on the ship.
One of our rules is that every student ______wear school uniform while at school.
In our class there are 46 students, ______ half wear glasses.
My mother opened the drawer to _________ the knives and spoons.
Tom was about to close the windows_____ his attention was caught by a bird.