—Where is Linda? —She may be at home. But I’m not sure & 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

D．in

答案：B

试题分析：句意为：---林达在哪里？---她也许在家。但是我对此不太肯定。be sure about sth是固定用法，表示“对某事肯定或确信”。故选B。
考点：考查固定短语。