She isn't so quiet as she _________.She's outgoing now.A.used to B.used to be 解释具体点.

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She isn't so quiet as she _________.She's outgoing now.A.used to B.used to be 解释具体点.

She isn't so quiet as she _________.She's outgoing now.A.used to B.used to be 解释具体点.
She isn't so quiet as she _________.She's outgoing now.A.used to B.used to be 解释具体点.

She isn't so quiet as she _________.She's outgoing now.A.used to B.used to be 解释具体点.
use to的用法:used to do sth.表示“过去总做某事”(现在不做了),只用于过去时态
She isn't so quiet as she used to be.
希望对你有用.

B. used to be 表示过去的状态.
句意: 她不像过去那样文静了.她现在外向开朗了.

A.省略至不定式符号to.就像。I' glad to./I'm afraid to/I'd love to.