I am considering changing to a more interesting job, as the present job, which requires a lot of _______, nearly bores me to death. 

To our excitement，two ______ of students ______ a success after three years' hard work.

Violence (暴力) computer games may have a bad ____________ on children.

 The storm sweeping over this area now is sure to cause _____ of vegetables in the coming days.

Last year the number of studects who graduated with a driving licence reached 200,000, a(n) ________of 40,000 per year.