完形补文
下面的短文有10处空白,每处空白后的括号内有一个词,请根据短文内容将其正确的形式填入文中,以恢复文章原貌。
A Dog Day-care Center
Do you have any pets (pet)? Keeping a pet causes troubles for its owner sometimes.
Rebecca was a 41. __________ (success) high-level official at a big company, but she did not find her job very 42. __________ (satisfy). Her working hours are getting 43. __________ (long) than before. She felt very guilty about 44. __________ (leave) her two dogs inside the house for long periods of time. She 45. __________ (know) she was not the only dog owner in Washington in this situation. She felt other people would be 46. __________ (interest) in a day-care center for dogs. So in 1998 Rebecca left her company and opened Dog Ma on a street near her home. Since then the business has 47. __________ (grow) to include one part-time and four full-time 48. __________ (employ). One of them lives at the center.
On a normal day, about 30 dogs are at the center. About 25% of them are 49. __________ (young) than one year old. The center also offers 50. __________ (addition) services like dog training and transportation to and from the center.