The shop assistant showed her several mobile phones and she chose _______expensive one.
In a traditional Chinese wedding, the newly married couple(夫妻)are usually _______in red.
---Please don't make a noise. ---_______. I'll be as quiet as a mouse.
--- What do you think of the film? --- Fantastic. _______ the children_______ their father likes to see it.
---Is_______ necessary to learn another language? --- I think so.
He could hardly work alone, _______?