We played tennis _four o'clock(by,until) 觉得两个选项都可以 I am afra

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We played tennis _four o'clock(by,until) 觉得两个选项都可以 I am afraid she can't catch up with the
I am afraid she can't catch up with the others in our class_the end of this term.
此处觉得填by ,at也都可以
很困惑

We played tennis _four o'clock(by,until) 觉得两个选项都可以
until
直到
I am afraid she can't catch up with the others in our class_【at 】the end of this term.
此处觉得填by ,at也都可以
by：表时间,一般不接精确的点.
不迟于；在……之前
\x100\x100We had to get there by evening.
在……的时候
\x100\x100He had to sleep by day and work by night.

用at,in或on填空Shall we meet _four o'clock _Monday afternoon?急,大 Beethoven played the piano until 12 o’clock. at,i,by,going,am,three,o^clock,bike.i,go,the,museum,can,how, I haven't been gone to bed until 12 o'clock every night.我每天都 We got to the station until 12 o'clock I played tadle tennis.是什么意思 I am going at 3 o'clock. sarah played tennis last weekend.we went to the mountains by I did my math homework Until 8 o 'clock是什么意思 I will work ( ) five o'clock.(until,up) I will work .five o 'clock.中.可不可以填until I will work ( ) five o'clock.(until,up)选一个