Obama delivered a speech to 500 local youths during his visitto China, many of were from Fudan Universityand Tongji University

She had been in ________ doctors described as in a confused state of mind for five years.

If I 　　　　where he lived, I 　　　　a note to him.

Animals are our good friends. We are supposed ________ them.

Try to eat food groups _ _ vitamins A, C and E—they will do lots of good to your eyesight.