Origami Christmas tree ball made out of newspaper,with a spe

origami owl 是什么意思?英文翻译成中文怎么翻译?谢谢了,大神帮忙啊
origami owl：折纸的猫头鹰一般出现这个单词,是因为origami owl是一个品牌,一个饰品、首饰、珠宝品牌.

英语语法
Though its early history is not fully known,origami,the art of folding objects out of paper without cutting,pasting,or decorating,seems to have developed from older art of folding cloth
have developed用法对吗
不是单数吗,怎么have

详细解释几道SAT的语法题
Studens in the origami class selected colorful sheets of paper,（creased and folded it carefully,and thus had created) fanciful animal shapes.
A.括号内原句
B.then creased and folded them carefully to create
C.they creased and folded it carefully to created
D.creasing and folding it carefully to created
E.creased and folded them carefully,thus they created
为什么选B而不选E?
(Preparing to be a foreign service officer) after graduation,both Mary and Keisha Have decided to major in international affairs.
A.原句
B.Because they wanted to prepare to be a foreign service officer
C.When preparing to be a foreign service officer
D.As preparation for becoming foreign service officers
E.Planning for their preparation to become foreign service officers
为什么选D而不选E