unit 1 tales of the unexplained ⅰ.完形填空(18 min.) a mr. and mrs. brown were going abroad for their holiday. they had a dog called blackie which they were very fond of, but they could not __1__ him abroad with them, so they looked for a good place to __2__ him while they were away, and at last found a place which __3__ dogs very well while their owners were away. they took blackie there just before they left for their holiday, and __4__ said goodbye to him. at the end of their holiday, they got back to england very late at night, and as they thought that the place where blackie was staying might be closed at that __5__ hour, they decided to wait until the next morning before going to get him. so the next morning mr. brown got into his car and drove off happily to __6__ blackie. when he reached home with the dog, he said to his __7__， “do you know, dear, i don't think blackie can have enjoyed his __8__ at that place very much. he __9__
