Sentence:  One cannot but <WSD>wonder</WSD> whether these doubts about the success of Khrushchev 's agricultural policy have not at least something to do with one of the big surprises provided by this Congress - the obsessive harping on the crimes and misdeeds of the `` anti-party group '' - Molotov , Malenkov , Kaganovich and others - including the eighty-year-old Marshal Voroshilov . 
Meaning of the word marked with <WSD> tags:  place in doubt or express doubtful speculation