KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P2)

It was not until she arrived at school_________realized she had forgotten her book.

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It was not until she arrived at school_________realized she had forgotten her book.

did she

and she

when she

that she

Giải thích

Đáp án : D

It was not until+ cụm thời gian/ mệnh đề thời gian+that+  clause: mãi cho tới khi… thì…