He did his best to stay awake, but the p

题库2022-08-02  11

问题 He did his best to stay awake, but the performance was so boring he just dropped _____ to sleep.A.awayB.outC.offD.down

选项 A.away
B.out
C.off
D.down

答案 C

解析 drop off逐渐减少;睡着。drop away离开,散去。drop out掉出;退出(学校、社团等)。drop down掉下。
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