Joe was an old man. The 75-year-old man lived very happily in a village and had a happy family. Joe had four grandchildren, and they visited him during their ________.

During one vacation, Joe was ________ his home for the kids: cleaning and buying their favorite foods. After he finished working, he realized he lost his favorite watch. The watch was a gift from his ________ when their first child was born. Joe loved the watch very much, especially after her death. He was very ________ about losing it.

Once his grandchildren came, they ________ him they would find the watch.

One granddaughter asked, “Grandpa, do you remember when you saw the watch for the last time ________ it went missing?”

“I guess when I was cleaning the barn (谷仓)!” Joe replied.

The children ________ the watch for more than two hours with Joe, but they could not find it. The kids were now also sad, but they tried to comfort (安慰) their grandfather.

One grandson went back to the barn to search again. Joe asked why he went there again But the little boy just asked the others not to follow ________ and to keep silent.

He was there for about fifteen minutes and then went back to his grandfather. He found the watch and happily gave it to Joe.

Joe was ________ and asked how he was able to find it. The little boy replied, “I sat there ________ making a noise, and the barn was so silent. After a few minutes, I heard the ‘tick, tick’ sound and found the watch.”