- Who left the window _______?- Sorry. I forgot _______ it when I left yesterday.
— I haven’t got a partner _________ .— Maybe you can ask John for help.
Your teacher will not be happy ________you finish your homework.
I often warn children ____ in the deep river.
Usually we get _____about something and end up _____in Chinese.
— Do you have in Beijing? — Yes. My aunt and uncle live there.