–I don’t know this English word(单词).----Well,here is a ______ and it can help you.
— I don't know______. — Because he has to look after his mother.
— Could you tell us how long ___? — About three days.
— I don’t know next. — Let’s ask our teacher for help.what to do B. what should I do C. how to do D. how I should do
— Are you going to Beijing for the summer holiday next week?— Yes. But I haven’t got the air tickets and don’t know we will set out.
— Do you know there is a Bank of China near here?— Yes. There is one at the end of this road.