--- What happened _________ you ________ April Fool’s Day?--- I was fooled by my little brother.
He has stayed there for _________,but ________he likes to stay at home.
Every year, more than 70.000,000 sharks____for their fins.
The mountain is so high that its top snow all the year round.
Don’t throw away the waste paper. It needs so that it can be reused.
Something is wrong with my computer. It needs .