having a large family of 12 to support,he wa desperate to find a good job

问题描述:

having a large family of 12 to support,he wa desperate to find a good job
to support为什么?
Asupporting
B to be supported
cto support
Dbeing supported

主语是he,可以发出动作,用主动形式,有一个12人的大家庭去养