It's up to you 表示“你决定”或“看你喜欢”。当两种选择都无所谓，或决定权确实属于对方时，可以用它把选择交给对方。It's up to + 人 + to + 动词 也能说明谁负责某事：It's up to the teacher to check the tests。
想在对话中用 up to you 吗？
写一句英语，查看错误和更自然的表达建议。
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It's up to you.; it's up to + person + to + verb; it's up to you + what/where/whether + clause
- 'Pizza or sushi tonight?' 'It's up to you, I'm happy with either.'
- It's up to the team leader to decide who works on the new project.
- You can pay the deposit now or next week; it's entirely up to you.
修改原因
修改前'Should we take the train or the bus?' 'It depends on you.'
修改后'Should we take the train or the bus?' 'It's up to you.'
It depends on you 看起来意思接近，但它强调结果取决于这个人，其他人可能在指望他。让对方在火车与公交之间任选，用 It's up to you 更自然。修改时问题不变，只换了回答。
不要和 What are you up to? 混淆，这个问题是在问正在做什么或打算做什么：What are you up to this weekend? 与数字搭配时，up to 可以表示最多：The hall holds up to 200 people。
动手练习
'Which film shall we watch tonight?' 'I've seen them all, so ___.'
查看答案
it's up to you — 说话者所有电影都看过，无所谓选哪一部，因此把选择交给对方：it's up to you。It depends on you 会更像是在说某个结果取决于对方。
同事问你这周什么时候方便通话。用 it's up to you 回复，并给出两天可以安排的时间。
It's up to you. I'm free on Tuesday afternoon and all day Thursday, so just send me an invite.
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