题目内容
He ________ just ________ when there was a great noise.
[
]A
. was, falling sleep B.is falling asleepC
.was,falling asleep D.is falling sleep
答案:C
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题目内容
He ________ just ________ when there was a great noise.
[
]A
. was, falling sleep B.is falling asleepC
.was,falling asleep D.is falling sleep