19. I made a bad impression ________ the teacher ________ arriving late on my first day.
Americans eat ________as they actually need every day.
After the new technique was introduced, the factory produced______ tractors in 1998 as the year before.
_____ can you expect to get a pay rise.
Not only _____ polluted, but _____ crowded.
A middle-aged woman came _____ to the bus stop only_____ the bus had gone.