语法与词汇 11.The actors have to ______before they appear in front of the strong lights on television.

【正确答案】 B

【答案解析】句意：演员们必须在在电视上亮相前就妆扮完毕。make up化妆，打扮。cover up遮盖，盖住。paint up装饰；整修。do up整理；刷新；修缮。