Sentence:  The impression has nevertheless been <WSD>given</WSD> during these three days , despite Mr. Rusk 's personal popularity , that the United States delegation came to Oslo in a somewhat tentative and exploratory frame of mind , more ready to listen and learn than to enunciate firm policy on a global scale with detailed application to individual danger spots . 
Meaning of the word marked with <WSD> tags:  be the cause or source of