________ (hold) on a minute,please!I _______ (look) for a piece of paper now.

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• ________ (hold) on a minute,please!I _______ (look) for a piece of paper now.
• 1There is a koala in the tree(play) 2Don't down the tree,we should protect them(cut)3Look,the Young pioneers trees(plant)4please pass me two of paper I'd like to draw some flower(piece)5This kind of energy less and less(get)6Each of the animals very lovely(be)7people are trying to the rare animals(protect)8 off the lights when you leave the room(turn)9My grandpa interested in trees(water)10Tell the children the animals(not kill)
• ________ (hold) on a minute,please!I _______ (look) for a piece of paper now.
• All the answers are right.改为否定句
• 如图所示，光滑的长直金属杆上套两个金属环与一个完整正弦图象的金属导线ab连接，其余部分未与杆接触.杆电阻不计，导线电阻为R，ab间距离为2L，导线组成的正弦图形顶部或底部到杆距