阅读理解。 At the Beijing time 14:28 May 12, 2008, a strong earthquake suddenly happened in Sichuan Province. As they saw a young woman in broken houses, the rescue (营救) workers were sad to find that she had already been dead, yet surprised to notice her kneeling down with her hands touching the ground to support her weight - and right under her shelter of flesh and blood (血肉), her several - month - old baby was sleeping, safe and sound. The baby was put around carefully in a little quilt (被子), with a mobile phone inside. An unsent text message was found that read: "Dear Baby, if you Could Be Alive, Please Remember That Mum Always Love You!" As it was too young to know what was really going on, the baby's dream must have been free from nightmare (恶梦), though a nightmare was taking place. However, it was the mother's love that pred the nightmare from falling upon the young dreamer. Mother's love at her last breath!!! 1. It was _______ when the baby was found. A. crying B. dying C. sitting D. sleeping 2. The mother knelt down with her hands touching the ground in order to _______. A. have a rest B. save her baby C. protect herself D. pr the nightmare 3. Which of the following is true about the text message? A. It was a message to the baby's father. B. It had already been sent out when found. C. The mother hoped that her baby could live. D. The mother wouldn't like the message to be found. 4. The passage is mainly about _______. A. mother's love B. Sichuan earthquake C. a lucky baby D. the last breath