语法填空（共10小题，每题1.5分，满分15分）
阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。
Just up the road from my home is a field, with two horses in it. From a distance, each horse looks like any other horse. But if you get a ______( close) look you will notice one of them is blind.
Instead of abandoning him, his owner has made him a safe and comfortable barn to live in. And if you stand nearby and listen, you will hear the sound of a bell___( come) from ______ smaller horse. Attached to  ____ (it) halter is a small, copper-colored bell assisting the blind friend to follow him.
___you watch them, you'll find the horse with the bell always checking on the blind one, and that the blind horse will listen for the bell and then slowly walk to ____ the other one is, trusting he will not ________( lead ) astray. When the horse with the bell returns to the barn each evening, he will stop ______( frequent ) to look back, making sure that the _____ isn't too far behind to hear the bell.
Life does not throw us away just because we are not perfect or because we have problems or challenges. Sometimes we are the blind horse being guided by the little ringing bell of our acquaintances; ____other times we are the guide horse, who helps others to find their way.