—Do you know about the accident which happened in the center of the city?—Yes. But it was some time we realized the truth.
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.
—Is it all right if I keep this photo? —_______.