The electronic red-packet has been so ______ that AliPay and Tencent Wechat compete against each other openly and secretly since the beginning of this year.
----Marx looks nervous. ----So __________ you if you had so fierce a competition.
_________ caused the accident is still a mystery.
The sun began to rise in the sky, ________ the mountain in golden light.
I wonder whether the teacher is one of those who _______ to the mountain village to help the children there.
The book tells stories of the earthquake through the eyes of those _______ lives were affected.