油菜种子是榨取菜籽油的原料．菜籽油主要来自油菜种子的（　　）

A．胚芽

B．胚轴

C．胚根

D．子叶

用适当的人称代词和物主代词填空。

1. _____ am a student. _____ name is Millie.

2. Mr Chen is an old man, _____ is happy. _____ coat is very nice.

3. Lily and Miss Xue are good friends. Look, _____ are swimming in the lake. 

    _____ bags are on the bank.

4. Jill and I are classmates. _____ study at Xiangyushiyan Secondary School. _____ school is very nice.

5. —Hi, Tedy, is this _____ sweater?

    —No, It's not _____ sweater.  Ask Lily. _____ is under the tree.  I think it's _____ sweater.