根据句意及首字母提示补全单词。

1. There are three p________ in my family.

2. What's your f________ number?

3. In my school there are a________ eighty teachers.

4. I think e________ is at school today.

5. Don't w________. You can do it well.

清花在工艺设计方面，既要考虑开松除杂，又要综合考虑降低棉结和短绒。要使大杂、硬杂和不孕籽等早落、多落、少碎、以便使筵棉含杂率在1%左右。短绒要多排除，少增加，筵棉短绒率要达到不增长或负增长，最高不超过1%棉结增长率控制在（）以内。

A、0.5%

B、1%

C、1.5%

D、2%

E、80%

F、75%