—What's the matter with the man hanging his head there?
—Well，if you ________ know, he was caught stealing my bike.
| A．must | B．may | C．can | D．shall |
Your efforts to develop good habits will ______ later, and it is well worth working hard to do so.
| A．pay off | B．pay back | C．pay for | D．pay up |
— Why don’t his colleagues like to get along with him?
— He’s always saying what he thinks ______ other people’s feelings.
| A．in terms of | B．regardless of |
| C．in favor of | D．ahead of |
Your phone ______ for several minutes now. Why don’t you answer it?
| A．had rung | B．rang |
| C．has been ringing | D．was ringing |
You can’t see things clearly through a telescope unless it is _____ correctly to your sight.
| A．adjusted | B．examined | C．checked | D．tested |
It is said that many streets in this city have been ______ for cultural protection.
| A．left out | B．carried out | C．marked out | D．stood out |