Protecting the South China tiger from (dying out) takes a long time,dosen't it?括号中为什么die out 用ing形式呢?

the man has devoted much of his time ( )South China tiger.A.to protect B.to protecting C.protected D.protects Protecting the South China tiger from (dying out) takes a long time,dosen't it?括号中为什么die out 用ing形式呢? protecting Protecting the innocent 英语全文 Protecting the Environment 写作文 the south 英语作文：protecting the Earth80词 protecting the innocent 全文加翻译 in south是不是等于in the south The South Korean the south gate是什么意思 the south island是什么意思 the south island是什么意思 recogintion and funds to protecting the Ming and Qing Tombs.这个protecting 用的对么? The importance of protecting the culture heritage150字左右 People should know the _____________ (important) of protecting the environme People all realize the _____ of protecting the environment 翻译“The cold is the way of protecting yourself from.”