单项选择题

He had had a long walk. He was dying to have a drink.()

A.他走了远路。淹淹一息的他还想喝口水。
B.走了远路之后,他已经奄奄一息了,想喝一点水救命。
C.走了远路之后,他要死了,只想喝一点水。
D.走了远路之后,他口渴得要命,想喝口水。