--The man in a black suit _______ be our youth worker.--- I’m sure it _______ be him. I saw him in the laboratory building some minutes ago.
—Did you see the traffic accident on East Street this morning? — Yes, I _________ shopping with my friend Tina at the time. A. have gone B. am going C. was going
You _______move to the next room. You may still stay here if you like. A. must B. needn’t C. can’t
You will lose the game _________ you try your best. A. when B. if C. unless
—What a careful boy you are! —Thank you. In fact, Tom does everything ________ than me. A. more carefully B. more careful C. much careless
We know ________ about Lucy, because she is new here. A. everything B. something C. nothing