—Could I borrow your camera tomorrow?
—I don’t think you need it, because visitors ______ to take photos there.
| A．aren’t allowed | B．don’t allow |
| C．haven’t allowed | D．hadn’t been allowed |
On Sundays there were a lot of children playing in the park, _______ parents were seated together joking.
| A．their | B．whose |
| C．which | D．that |
Mr. White ________ at 8:30 for the meeting, but he didn’t show up.
| A．should have arrived | B．should arrive |
| C．should have had arrived | D．should be arriving |
I told Sally how to get here, but perhaps I ________ for her.
| A．had to write it out | B．must have written it out |
| C．should have written it out | D．ought to write it out |
Jenny ________ have kept her word. I wonder why she changed her mind.
| A．must | B．should |
| C．need | D．would |
I was really anxious about you. You ________ home without a word.
| A．mustn’t leave | B．shouldn’t have left |
| C．couldn’t have left | D．needn’t leave |