According to the author, all of-the following evidence relating to the first birds was found EXCEPT（） A: nesting materials B: four skeletons in good condition C: two fragmented skeletons D: a single feather

Which of the following symbols are quite common on Halloween? A: Jack-o-lanterns B: Witches C: spiders D: skeletons

Questions 1 and 2 are based on the news report you have just heard. 2题选（）. A: Countless tree limbs B: A few skeletons C: Lots of wrecked boats and ships D: Millions of coins on the bottom