（多选题）请找出as if-从句是表语从句的句子。
A、 It looked as if she had known me for years.
B、 She raised her hand as if she had something to say.
C、 She looked as if she were ten years younger when she came back from her vacation.
D、 The house seemed quite new as if no one had ever lived in it.
A、 It looked as if she had known me for years.
B、 She raised her hand as if she had something to say.
C、 She looked as if she were ten years younger when she came back from her vacation.
D、 The house seemed quite new as if no one had ever lived in it.