How_____it in English?

Shanghai is bigger than_____ in Jiangsu province and bigger than_______ in China.

I wonder how he could _______ not handing in his maths exercises yesterday, for his maths teacher is always strict with his students. [ ]

______ no attention to the difference between the two, I am sure, will be one of the worst mistakes you make.

He arrived _______ Shanghai _______ themorning of January 5.