The patient opened his mouth,__to say something to his son

问题描述:

The patient opened his mouth,__to say something to his son
A.as if B.like C.even thoughD.as

选B.as if 是好像、好似的意思,但是是在虚拟语气中引导从句.
even though是虽然、即使的意思.
as是随着、因为、虽然、依照的意思.
依照本文语境应该为,病人张开了嘴,想要对儿子说点什么.be like tio 表想要做某事.故选B