第三节语法填空 (共10小题，每小题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，并将答案填写在答题卡标号为51～60的相应位置上。
Last year, I read a “ Happy Ad” in the local newspaper. There was a lady in a local nursing home, ___51__ was celebrating her 90th birthday. Her family wanted some warmed-hearted people to drop her a line. So I found a card and dropped her a short note, ______52______(wish) her a happy birthday. A week later, someone knocked at my door. I opened the door and found __53______ middle aged man standing on the doorstep. He introduced _____54______ as the son of the woman  ____55____whom I had sent the card. He explained that he just wanted to thank me _____56____  sending such a nice card to his mom. Apparently, she did not receive much mail and was excited _____57_____(receive) mine. I just didn’t know what to say. I told him it was my ______58_____(please) and that I hoped his mom had enjoyed her birthday.
The old lady ____59____ (pass) away shortly after that. I had never met this lady, but I kept her and her family in my mind. I dropped them a line of sympathy. All I hoped was ____60_____ my note was enough to brighten a couple of her days on the Earth.