— Can you speak Chinese, Steve?— Yes, only . I have been in China for only one month.
This famous drawing is sold ____ 10,000,000 dollars.
I can hardly work out the answer _____ this difficult question.
I got a letter this afternoon. It was ____ my foreign friend.
I’m all ____ sea and I’ve no idea how to fix my pencil box.
We built this factory ______ top speed and minimum(最少的) cost.