题目

I was very shy when I was little. One day in class, my teacher asked me a _______ I didn’t know the answer to it. Then I said something that sounded very _______ to my classmates. They all laughed. From that day on, I always_______to be quiet in class.When I was thirteen years old, my family moved to a _______city, so I went to a new school. On the first day, my dad and I _______our house late. When I arrived at the school, the class had begun. I walked in and found the entire class was_______me. This frightened me. For the next couple of classes I just sat_______Mrs Smith, a kind-hearted te下列说法正确的是      （        ） A.32gO2占有的体积约为22.4L B.a L甲烷和乙烷混合气体中的分子数约为×6.02×1023 C.在标准状况下，22.4L水的质量约为18g D.22g二氧化碳与标准状况下的11.2L HCl含有相同的分子数