-- ____ __ have you been at this factory? -- Since 2000.

--_____is the post office ?--- Go straight and turn right.

The sun is_____bigger than the earth. 

– Excuse me. Where is the bus stop, please?–I’m sorry. I don’t know the way, _______.

Though they are far away from school, the children who live in mountains ______ go to school on foot.