若（a﹣2）2+|b﹣3|=0，则（﹣a）b的值是____．
—Thank you.
—________
下列能正确表达如图意思的是（ ）
①作出承诺比兑现承诺重要 ②承诺总想获得别人的回报
③人与人之间需要承诺链接 ④轻易承诺往往会失信于人
My Room
This is my room.It's nice and clean.You can see a ____ ，a ____ ，a ____ ，a ____ ，a ____ and a ____ in the room.There is a ____ on the wall. There are some ____ on the desk.There is a new ____ on the desk，too. I like my room.
，a 
，a 
，a 
，a 
and a 
in the room.There is a 
on the wall. There are some 
on the desk.There is a new 
on the desk，too. I like my room.