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).

关于手锤使用说法正确的是（）

A.手锤柄大小长短要适宜得当，锤头上必须加铁楔，以免工作时甩掉锤头；

B.抡锤时，对面和后面站人；

C.使用的锤柄与锤头有松动、裂纹，锤头上有卷边与毛刺；

D.手上、手锤柄上、锤头上有油污