—I can’t find Xiao Ping, where did you see him this morning?—It was in the library______ he studied.
It was only with the help of the local guide ______.
---Is this book interesting? ---Yes, but I’m sure it won’t interest __________.
We should consider what use can be made ______ such a material(材料).
Jane, I hear you to China. Have you got everything right ?
The look on his face showed that he had enough confidence in himself.