填空题
A. I think so. B. With pleasure. C. Please take it easy. D. Yes, but why E. Sure you can. F. It’s very kind of you! G. Never mind. H. Not too bad.
A. human brains differ considerably B. the brain a person is born with is important in determining his intelligence C. environment is crucial in determining a person’s intelligence D. a person who is handicapped environmentally will never attain the level of intelligence of which he is capable