I was just (falling) (sleep) last night (when) I heard a knock (at) the door.A、f

游客2025-03-17 0

问题 I was just (falling) (sleep) last night (when) I heard a knock (at) the door.

选项 A、falling
B、sleep
C、when
D、at

答案 B

解析应改为asleep，因为fall是系动词，后面接形容词做表语。

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Iwasjust(falling)(sleep)lastnight(when)Iheardaknock(at)thedoor.A、f