【题目】We often do some cleaning. Our house is always ____________.

【题目】Most people are ___building a paper factory near here. They are worried the river will get polluted.

【题目】You’ll have to _______the ticket early if you want to see that football match.

【题目】There is no class today. What about ____________ shopping?

【题目】John is a careless boy. He often ____________ his things at school.

【题目】Little Tommy won the first prize in the 10-metre climbing race. His parents take (proud) in him.

【题目】____________ students are visiting our school.

【题目】The Great Wall is famous, so every year _______people come to visit it.

【题目】I bought____for my mother on Mother’s Day this year.