Jim wih his good friends ____(be)helpful.They often help me _____(with,of)my homework.

问题描述:

Jim wih his good friends ____(be)helpful.They often help me _____(with,of)my homework.

is his good friends不算是主语中的一部分,只是伴随状语。
with 有个固定短语是help sb with sth

is
with