—Where is Linda? — She may be at home. But I’m Wap版

试题详情及答案解析: —Where is Linda? — She may be at home. But I’m not sure it.
A. at B. about C. with; 答案：B; 试题分析：句意：琳达在哪里？她可能在家里。但是我不确定。Be sure about sth对某事确定。
考点：考查介词搭配。