In his essay, the professor_______the existence of UFO, but_______out the fact that we still_______no proved evidence of their existence.

🎲 Try a Random Question  |  Total Questions in Quiz: 14  |  🧠 Study this quiz with Flashcards
This question is part of a full practice quiz:
Upper intermediate level: Present Tenses 2 — practice the complete quiz, review flashcards, or try a random question.


In his essay, the professor_______the existence of UFO, but_______out the fact that we still_______no proved evidence of their existence.