15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 15)

Only after she had finished the course did she realize she ______ a wrong choice

18/50

Only after she had finished the course did she realize she ______ a wrong choice.

had made

has made

had been making

was making

Giải thích

Chọn A