In January, 2004, the United States successfully launched “Spirit”, a Mars Exploration Rover, _____ a new milestone in the history of mankind.
| A．it marked | B．marking | C．marked | D．to mark |
— Guess what? Alex was caught cheating in the exam.
— I can’t believe that he _______ do such a thing! Everybody knows he is an honest boy.
| A．need | B．must |
| C．would | D．should |
Joe just wanted to play a joke on her . He did not mean ____ Sarah.
| A．hurting | B．to hurt |
| C．hurted | D．hurts |
---- Do you know when Mr. White will come back?
---- Perhaps next week, but ___________ .
| A．I’d rather not | B．I’m not sure |
| C．I don’t mind | D．I couldn’t agree more |
---I’ll do the washing-up. Jack, would you please do the floors?
--- _______.
| A．Yes, please | B．No, I don’t |
| C．Yes, sure | D．No, not at all |
--- I rang you at about nine, but there was no reply.
--- Oh, that was probably _______I was seeing the doctor.
| A．why | B．when |
| C．what | D．that |