In the botanical garden we can find a(n) __________ of plants that range from tall trees to small flowers.
Nick is looking for another job because he feels that nothing he does ________ his boss.
My father had ____ me a new computer as my birthday present.
After the earthquake, the government turned a school into a for the victims of the earthquake.
It is difficult for my teacher to my mistakes in my composition. He is so careful!
I have many friends, some are businessmen.