He ___ to lend me a hand but I refused for I didn't want to trouble him

问题描述:

He ___ to lend me a hand but I refused for I didn't want to trouble him
a.insisted b.offered c.failed d.thought
为什么选B?

联系下语境么——
他(表示要/想要)帮我一把,但我拒不麻烦他了.
offer:提出、意图,要比think更付诸行动,肯定错(But).
干扰项为a.
但insist作及物动词直接加宾语(一般为从句)
不及物时多用:insist on doing^