1.Monday is the day that we will come.(不加that也行,因为先行词the day 在从句中作宾语)
2.He arrived in Shanghai that day which is the same day I left.
3.July is the month that the weather is usually the hottest in that month.
4.April Fool’s Day is that special day of the year which you should play a joke on someone.
5.March 10,1876 was the day that the first complete sentence was sent over a telephone.
6.The city that we spent our vacation there was beautiful.
7.That is the restaurant where I will meet you.
8.The town that I grew up is small.
9.This is the house which they put their tools in.或This is the house where they put their tools.