题目

下列计算正确的是（） A . 4x﹣3x=1 B . x2+x2=2x4 C . （x2）3=x6 D . 2x2•x3=2x6 答案：COn September 13th, I woke up in the best mood. It was a late start, so I got to sleep in. Not only did I get my full eight hours of sleep, but an additional two more hours as well. I got ready, danced in my room to my favorite music while I picked out my clothes, made my lunch, and was on my way to school. I arrived at 9: 50 a. m. Little did I know, in the next 20 minutes, my life would change forever. As I got out of my classroom, there he was, holding the gun. Although everything happened so fast, in a matter of about 4 minutes, I remember it clearly. I remember every face I saw, and I remember every sound I heard. I remember the fear and the panic of the unknown. And lastly, I remember running. Running for my life. I ran down the stairs, out of the school’s front doors, and down the street to the primary school. I remember looking down at my feet. As I looked down I thought to myself, “ How am I running so fast?” I finally made it to a safe classroom, and 20 other students and I settled in for lockdown. We stayed close to one another and cried. It felt as though the tears going down our faces would never stop. We passed our phones around to text our loved ones that we were safe and that there was a school shooter, shots were fired, and 4 students were injured thus far. The lockdown lasted about 30 minutes, even though it felt like forever. Our headmaster made his way to our room and explained that the shooter had been caught and we were all going to make our way to the football field.1.How did the writer feel before going to school?A. Relaxed. B. Worried. C. Scared. D. Puzzled.2.What does the phrase “sleep in” probably mean in Paragraph l?A. sleep in bed B. sleep with clothes onC. sleep with face covered D. sleep longer than usual3.What did the students do when the shooting began?A. Calling the police for help. B. Running away in all directions.C. Fighting back against the shooter. D. Texting their beloved ones about it.4.Where did the writer find safety in the shooting?A. On a football field. B. In a neighboring school.C. In a classroom of her school. D. Back at her own home.5.What can we tell from the story?A. The headmaster didn’t care about his students.B. There was more than one shooter in the killing.C. Not all the 21 students took phones with them.D. The shooter killed himself in the end.