Miss Gu is _____ teacher. She teaches ____ Chinese.
As we all know, it’s not polite to keep others _____ for a long time.
Excuse me, Mum. When can we have dinner?—Not until it in half an hour.
Can I tell Peter about the news?– No, I don’t want anyone else to know it. You ________ keep it to yourself.
Can you tell me Kitty’s address.-I don’t know, either. But I’ll tell you her address as soon as she ______ to me.