Her remarks left me wondering（ ）she could have changed so suddenly.
A、
when
B、
how
C、
whether
D、
that
【正确答案】：B
【题目解析】：
本句考察名词性从句，根据意思，从句应该用表方式的引导词how，选B。句意：她的话让我想知道她怎么会这么突然地改变。
Her remarks left me wondering（ ）she could have changed so suddenly.
Her remarks left me wondering（ ）she could have changed so suddenly.
when
how
whether
that
本句考察名词性从句，根据意思，从句应该用表方式的引导词how，选B。句意：她的话让我想知道她怎么会这么突然地改变。