根据首字母提示填空。

1. In old days there were several s_____ in the rich family.

2. Who is the l_____ of the army? I want to talk with him.

3. Three t_____ stole his bag yesterday.

4. U_____, he didn't pass the exam.

5. The wind is blowing heavily the whole day. What h_____ weather it is!

6. By the end of this c_____, we will have realized many dreams.

7. The men's leader went to a c_____ and said "S_____, open the door!"

8. As a writer you must i_____ a number of things in your story.

9. This c_____ king cut off his wife's head.

10. Please write out the story n_____.

受精的第3周时，卵黄囊和羊膜的外面、滋养层内面附有胚外中胚层。