国际奥林匹克委员会已经决定第31届奥运会于2016年在里约热内卢举办。这个组织的英文简写是_________.

We’re Kate’s ________.I’m her mother’s brother. He is her father’s brother.

The problems are difficult to solve. Please give me_________.

Please look after these ____ .

--- Did the book give the ___________ you needed?--- Yes. But ____________ it, I had to read the whole book.