Ключевые слова: ask, chalenge, chew, contemplate, debrief, discourse, doubt, doubtfulness, enquire, examine, head, inquire, inquiringexcogitate, inquiry, interrogate, interrogation, interrogative, interview, marriage, meditate, motion, mull, muse, oppugn, ponder, precariousness, proposal, pump, query, questional, reflect, ruminate, scruple, sentence, sound, speculate, subject, theme, topic, uncertainty, wonder,