根据句意、首字母或汉语意思完成单词
When you smile or laugh, your body ____________ (放松).
We can usually type（打字）words into the computer with a_______（键盘）．
The frog was too tired and it rested at the_______（底部）of the well.
How long can I _________ the book?  (借)
Do you know when the_______（国际的）meeting will be held in Shanghai?