One day, it was cloudy. An old man together with his grandson were waiting for the bus at the bus stop. Beside them stood a school boy with a umbrella in their hands. Before long, it started raining and then it began raining hardly．The old man and his grandson began to run because the sudden rain. Seeing that, the school boy hurried to help them, shouted to them, “Don't run, Grandpa, and you will fall down. Let's shared the umbrella together.”With these words, he held the umbrella over the old man and the little boy. It was not long since the bus came and they get on the bus together. were→was
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(答案→)were→was
解析：本文讲的是一个学生和祖孙两人在等公共汽车时遇到大雨学生和祖孙两一起撑伞等车的故事。
【小题1】考查谓语动词的单复数。根据主语An old man together with his grandson，把握关键词together with ，就前一致，所以谓语动词又an old man 而定，所以were改成was。
【小题2】考查冠词。根据后面单词umbrella，元音音素开头，所以a 改成an .
【小题3】考查代词。根据前面a school boy，所以是他的手里，所以their改成his。
【小题4】考查副词。雨下得大：it rain hard ，而hardly几乎不，意思不对，所以把hardly改成hard。
【小题5】考查介词短语，根据because + 句子，而because of + 名词/what 从句，本句后面是名词，所以because后加of .
【小题6】考查非谓语。根据动词see和boy之间是主动关系，所以seen改成seening。
【小题7】考查非谓语。那个男孩匆忙跑过来，喊着，应该做伴随状语，所以shouted改成shouting。
【小题8】考查连词。根据句意：别跑，否则你会摔倒，and是顺承关系，而or是否则，所以and改成or。
【小题9】考查连词，根据固定句型：It was +时间段 + before 。。。，It is + 时间段 + since，所以since改成before。
【小题10】考查时态，本文整篇讲的是过去的事情，所以应该用一般过去时，所以get改成got。