是be up to sb to do还是doing?
是be up to sb to do还是doing?
答案:1 悬赏:60 手机版
解决时间 2021-08-15 06:58
- 提问者网友：心如荒岛囚我终老
- 2021-08-14 22:43
最佳答案
- 五星知识达人网友：你哪知我潦倒为你
- 2021-08-14 22:52
It is up to sb.to do sth.
该句型为“该由某人做.”.该句型中up后的to是介词.
It is up to him to clean our classroom today.今天应由他做教室清洁.
It is up to parents to teach their children manners.该由父母教孩子礼貌.
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