The students have to be in bed____ten o'clock at night.A.UNTIL B.on C.for 选哪个?

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The students have to be in bed____ten o'clock at night.A.UNTIL B.on C.for 选哪个?
The students have to be in bed____ten o'clock at night.A.UNTIL B.on C.for 选哪个?

The students have to be in bed____ten o'clock at night.A.UNTIL B.on C.for 选哪个?
有没有漏选项?没正解.应是at/before /after.
on+某一天
for+时间段.
until,需把句子改成否定.The students can't be in bed until ten o'clock at night.

on ten o'clock 选b
根据句意是要在十点上床睡觉 所以不选a 小的时间前用on
希望对你有帮助哦~

选A。学生们得在床上躺到夜里十点钟。until "一直到......"
B不对,点钟前面的介词应该用at . 如:at seven o'clock
C for 后面要接一段时间,如for two days

A. until
在……之前

选B A是直到 句子意思不准确

B
学生应该在晚上十点钟上床~
祝:学习进步,更上一层楼! (*^__^*)
不明白的再问哟,请及时采纳,多谢!

答案A

on 表示具体日期的某一天

for+时间段表示一段时间

本句是说学生们不得不在床上躺到晚上10点

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