⑴Did you learn languages ?____       A、It's my brother .

⑵Who's this ?____                    B、Yes , he was .

⑶What is she doing now ?____        C、They're Daming's grandparents .

⑷Was your father a teacher ?____     D、No , I didn't .

⑸Who are they ?____                 E、She's reading a book .

血浆中的氧进入红细胞，先要经过哪一结构（　　）

在拼音旁的括号里写出词语。

yí  tǐ____

zhūi  dào ____ 

wàn  luán ____ 

aì  fǔ  ____ 

①郡县制②王位世袭制  ③分封制  ④嫡长子继承制