insist to do ,insist doing 和insist on doing的意思和用法最好能举例子

insist【用法一】 v.坚决要求；坚持要；一定要
例1：we insisted on his apology.
我们要他赔礼道歉.
例2：she insisted on seeing us home.
她坚持要送我们回家.
例3：i insisted on their arriving there ahead of time.
我坚持要他们提前赶到那.
注：1）insist on 后面不能接由“名词或代词 + 动词不定式”构成的复合宾语.不能说：the teacher insisted on all the compositions to be handed in on monday.
2）insist +宾语从句（从句中的谓语动词常用虚拟语气,即should + 动词原形或
省去should）.例如：the young men insisted that they （should） be sent to the front.
那些年轻人坚持要求被派往前线去.
【用法二】v.坚持认为,坚持说,强调
1） insist on +名词.
例如：he insisted on his innocence.
他坚持说自己无罪.
2）insist on + 宾语从句在表示一个客观事实时（谓语动词不用虚拟语气,而应用陈述语气）.
例如：the boy insisted that he hadn’t broken the glass.
那小男孩坚持说他没有打烂玻璃杯.

Both of my parents insisted _______ a computer for me, but I don’t think it is necessary.A. to buy B. buyingC. on buying D. in buying【陷阱】容易误选B，误认为insist后不...