re were noexaminations, we should have ___ at school

The nurse worked hard to help the sick and ___ .

He was sentenced to death _____ what he has stolen from the bank

vertisementincome this year is about $36 million, over three times________of last year

Is that Dec.21,2012 is the end of the world true?—Definitely not，but ________ must be paid to global climate change