这些英文词组怎么说啊,

in addition
complete the mission(task)
follow sb.to every where
lower the voice
a period of time
an English speaking country
at every occasion
dinch the butt
litter(这个单词就能够表示)
a personal letter
receive a gift
the sponsor of
in different ways
on stage
encourage sb.to do sth.
make great progress
be interested in
a lucky person
pet(这里做动词养宠物,后面跟所养的宠物就行了)
impolite behaviors
retur sth.to sb.