Important IDIOMs you must know for category Thought and Ideas.
TO THINK ON ONE’S FEET,TO LOSE THE TRAIN OF THOUGHT,PENNY FOR THE THOUGHTS,HAREBRAINED IDEA,LIGHT-BULB MOMENT,CLOUD CUCKOO LAND,BEE IN ONE’S BONNET,TO TOY WITH THE IDEA,TO THINK OUTSIDE THE BOX,BLUE-SKY THINKING

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