根据汉语意思写单词 。

1. The little dog is very sad, because it can't find its ______(主人).

2. The girl in a ______(马尾辫)over there is my sister.

3. When you want to get a job from a company, you should give them your ______(简历).

4. Tom is a ______(有礼貌)boy. He always says "hello" to his teachers.

5. I want to play tennis with my friends, but I can't find my ______(球拍).

上颌中切牙部分脱位，固定时间应为（）。

A.4周

B.3周

C.2周

D.6周

E.1周