阅读短文，根据短文内容填空。在未给提示词的空白处仅填写1个恰当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。Leaf-cutter ants are interesting. 【小题1】(look) for leaves, the larger ants usually go out in groups. They bite of bits of leaves and carry them back. Watching these ants march in single file, carrying leaves, is quite a sight. These ants can carry a leaf that 【小题2】 (weigh) 20 times more than they do. The leaves 【小题3】 (collect) by the ants are not for eating. They are brought back so fungus(真菌) can grow on them. The fungus is the food for the ants.
