问题补充：
单选题
When we got there, he was about to leave, so he only had time to explain _____ to us what he thought of our plan.A.carefullyB.roughlyC.impatientlyD.repeatedly
网友答案：
热心网友 1楼
B解析本题考查副词的含义。carefully仔细的；roughly粗略地；impatiently不耐烦地；repeatedly重复地。根据he only had time to explain可知是roughly粗略地，故选B。
