第二节语法填空（共10小题；每小题1.5分，满分15分）
阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答题卡标号为31--40的相应位置上。
When very small dinosaur bones were found in a Germany mine people thought they were from baby dinosaurs. __31__ scientist Martin Sander's work shows that they were probably fully __32__ (grow) and belong to the smallest giant dinosaur species ever found.
Growth marks on dinosaur bones are similar __33__ growth rings on trees. The rings are far apart while the animal is young and growing quickly. __34__ get closer as growth slows. "It is __35__ (exact) these tight ring marks that we found in the fossil (化石) bones," says Sander. So the fossils must have been from adult animals.
__36__ was this German dinosaur so much smaller than other giant dinosaurs, which grew up to 45 metres long and weighed as much as a thousand humans?
150 million years ago, most of Germany was underwater. Scientists think that __37__ water levels rose, there was less and less land and food available. The dinosaur __38__ (force) to adapt and evolved into a smaller animal __39__ (need) less space and food.
Since 1998, scientists have dug up more than 1,000 dinosaur fossils in the mine. It is one of the few places in the world __40__ the bones and footprints of dinosaurs have been found together.