My father began to work ______ a bus driver when he was 20 years old.
My boss required so much of me, so I believed that he was __________ being satisfied with my job though I had tried my best.
Surprisingly, Susan's beautiful hair reached below her knees and made __________ almost an overcoat for her.
Today's __________ of birth control make it possible for a couple to choose whether or not to have a child.
The foreign friends you referred to __________ looking forward to __________ around our university.
When we talk about the cities in the United States, the first __________ to come into our mind is New York.