Tea________by Asian populations for thousands of years and is believed to have many beneficial effects on health.
A：has consumed
B：has been consumed
C：had consumed
D：had been consumed
电视连续剧《汉武大帝》热播后，很多人对汉武帝的文韬武略有了基本了解，其治国核心思想源于（ ）
Three years ago my parents encouraged me keyboard, but for some reason, I gave up.
