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46～55的相应位置上。
Americans love pets. In America, there are more families with pets 【小题1】those with children. It is mon 【小题2】 U.S. homes have some sort of pets, such as monkeys, snakes and even wolves. But Americans’ all-time favorites are cats and dogs, because dogs can offer protection from thieves and unwele visitors and cats can help get rid 【小题3】the home unwanted pests. Beneath keeping pets, there lies a basic American belief: Pets have a right to be treated well. In Houston, Texas, dogs can have their dinner 【小题4】 (deliver) to their homes, just like pizza. Pets can even go with 【小题5】_owners on vacation. Besides, at least 75 animal welfare organizations exist in America which provide care and adoption services for _【小题6】 (home) and ill-treated animals. To pay for the high-tech health care, people can buy health insurance 【小题7】 their pets. Pets are _【小题8】 basic to American culture as hot dogs or apple pie. By now researchers _【小题9】 (discover) that interacting with animals lowers a person's blood pressure. Pets even encourage social relationships: They give their owners an appearance of friendliness, and they provide _【小题10】_ good topic of conversation.
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