题目内容

We usually take a __________ once a year.

A. vacation
B. vocation

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This is one of the most important _______ in the history of mankind.

A. accidents
B. incidents
C. events
D. things

They are happy to give their services free of _____________.

A. price
B. cost
C. expense
D. charge

The fireman received a ________ for saving the child's life.

A. reward
B. prize
C. award
D. money

The students are seeking for summer ___________.

A. professions
B. jobs
C. occupations
D. employments