a: Look at the monkey. It has a long tail. It can climb trees. It can't swim.（看这只猴子。它有一条长长的尾巴。它能爬树。但它不会游泳。）
b: Look at the bird. It has wings. It can fly. It can't run fast.（看这只鸟。它有翅膀。它能飞。但它跑不快。）
c: Look at the butterfly. It has beautiful wings. It can fly. It can't sing.（看这只蝴蝶。它的翅膀很漂亮。它能飞。但它不会唱歌。）
