he has been ___the research in monsters ever since

he has been ___the research in monsters ever since He has been working in the factory___.A.ever since B.10 year 麻烦翻译：He has been with me ever since 翻译句子：he has been doing nothing else ever since. he has been in english since last 1.he has been in shanghai since he was born. he airport has been in ___ since 2000 (serve) He has been in the army since 1999. he has been in english since last 什么意思 1,Ever since my brother took that job offer,he has been trav She has been () Shandong ever since.She moved here.A.in B.fo He has taught English in this university ever since he moved