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¡¡¡¡1.Betty can’t join us the card game. She ___ the classroom.
¡¡¡¡A, has cleaned B, was cleaning C, had cleaned D, is cleaning
¡¡¡¡2.A: Did you hear someone shouting? B: No, I didn’t. I ___ to the music.
¡¡¡¡A, listened B, have listened C, was listening D, had listened