下列各句中，没有语病的一句是（ ）

Such an inspiring speech ________ at the graduation ceremony that every one of us was deeply moved and strongly encouraged.

As you can see, between the two main roads ________ the teaching building.

We showed great pity to the poor old man, for ________ life was hard in the past

The number of people invited _____fifty, but a number of them _____absent for different reasons. [ ]