A：too
B：so
C：very
D：such
成语“蜀犬吠日”指的是：那里的狗不常见太阳，看到太阳后就觉得奇怪，就要叫。据此回答下题。
﹣13﹣|﹣7|
历史上，雅各布．伯努利等人通过大量投掷硬币的实验，验证了“正面向上的频率在0.5左右摆动，那么投掷一枚硬币10次，下列说法正确的是（ ）
Today is Tree- Planting Day. I go to the park with my parents. At about ten o'clock we start to plant trees. We needn't to dig holes because the people in the park dug them before. We just put the young trees into the holes. My father fills the holes with me. My mother carries water for the young trees. We are so tired when we finish the work. All of us hope the trees will grow well. I hope I can plant trees next year.
