最先引起人们注意的早期智人是(    )

两物体从同一高度先后自由下落，在第一个物体落地之前，两个物体之间的距离及两物体瞬时速度的差值关于时间的变化规律，下列图象描绘正确的是（   ）

① How does Amy feel? ____     A. I went swimming．

② What did you do last weekend? ____     B. He is a teacher．

③ Where does John come from? ____     C. He comes from the USA．

④ What's your father's job? ____     D. We have English and music．

⑤ What do you have on Mondays? ____     E. She is tired．

⑥ What is the tiger doing? ____     F. Please hold on．

⑦What will you do for your mum? ____     G. At 7: 00 a．m．

⑧Whose dog is it? ____     H. I'll cook noodles for her．

⑨Can I speak to your mum，please? ____     I. It's walking．

⑩When do you do morning exercises? ____     J. It's hers．