单词拼写（共10小题；每小题1分，满分10分）
51. I must a__________ to you for not being able to meet you at the airport.
52. There has been an 8% d__________ in his income because of the financial crisis.
53. Though time was l_________, we finished the work on time.
54.A lot of people a__________great importance to becoming rich and famous.
55.I will a__________ it if you can help us with the work.
56. Nobody is admitted to the building without p_____________of the police.
57. C__________drove him to open the letter addressed to his sister.
58.He played the violin beautifully by the side of the street and many p_________ put coins into his hat on the ground.
59.He s__________ in the final examinations and was awarded the first prize.
60. Mary used to sing songs in a pub to earn some e___________ money when she was a college student.