Question

【题目】Lingling ____ sing very well. She isn't good at （擅长）it. （ ）

A、can

B、can't

C、isn't

Answer 1

【答案】B

【解析】根据She isn't good at （擅长）it.表明玲玲不擅长唱歌。所以前一句应用否定形式。排除A。isn't不能直接否定实义动词，排除C。故选B。