题目

完形填空 As we know, rainforests are the lung of the earth. They   1  about 6% of the earth’s surface. Half of the animals on Earth live in rainforests. The sloth(树懒) is one of them. The sloth lives in the tree   2   30 meters of the ground. It is the most interesting animal I know. It looks like a panda or a monkey. It always moves very slowly,   3    when it is in danger. But you can’t imagine(想像) it is good at swimming. When it is in the   4  ,  it can swim like a big fish. Many people think it is a kind of  5  animal. Why? The sloth needs to   6 I’d like to start my own business –that’s I’d do if I had the money. A.why B.when C.which D.what