used to do与be used to doing辨析 — 英语填空题
题目
根据句意，用 used to do 或 be used to doing 的适当形式填空。加入辩论队以前，Maya常常在小组讨论中只听不说；经过几个月的练习，她现在已经习惯在众人面前发言。Before joining the debate team, Maya ___ stay silent during group discussions; after months of practice, she ___ speaking in front of a crowd.