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They need some more workers and money to build the bridge.改为

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They need some more workers and money to build the bridge.改为否定句,怎么填呢
They ( )( ) more workers and money to build the bridge.
改为否定句,怎么填呢?请说明理由?
They need some more workers and money to build the bridge.改为
They need some more workers and money to build the bridge.改为否定句:
They ( don't )( need ) more workers and money to build the bridge.
理由:这里的need是实意动词,所以用don't或者doesn't否定,
当然need也有情态动词,它的否定为needn't,但是后面要加动词,如:needn't do
题目中need后没有动词,所以用don't need来否定