阅读下面的短文,从各题所给的四个选项(ABCD)中,选出最佳选项。
The 75-year-old Joe lived very happily in a village and had a big warm family. His children 1 and moved to different cities. Now he has four grandchildren, and they usually visit him during their holidays.
During one 2, Joe was preparing his home for the kids: cleaning the house and cooking their favorite foods. After he finished working, he realized his watch was 3. The watch was from his 4 and he treasured it very much, so he was very upset. He looked for it but could not find it 5.
When his grandchildren came, they promised him they would find the watch which was given by their grandma.
One granddaughter asked:" Grandpa, do you remember when you saw it the 6 time?
"I guess when I was cleaning the 7 !" he replied.
The children looked for more than two hours with Joe, but they couldn't find it. The kids were now also sad, but they tried to comfort their grandpa.
One grandson went back to the garden to look again. He was there for about 15 minutes and rushed back with a (an) 8 look on his face.
Then everyone was very surprised to see the watch in his hand. They asked how he was able to find it. The little boy replied: "I sat there without making a noise. After a few minutes, I heard the 'tick, tick' sound and found the watch."
Joe hugged and 9 the little boy.
This is the power of 10 . If we stay calm (冷静), we are more about to find the ways of solving problems.