下列句中加点词语的意义和用法相同的一项是（ ）

Itwas ______that all of us were tired out when we arrived.

He told me to leave out the articles in this sentence ________ it is possible

The reason ________ he explained was________ he was ill and unable to go to school

My grandfather is as ______ as a young man and hates sitting around doing nothing all day.