He was reading his book, completely _______ to the world.
| A．lost | B．losing |
| C．to lose | D．to have lost |
With so much work on hand, you _____ to see the game last night.
| A．mustn’t go | B．shouldn’t go |
| C．couldn’t have gone | D．shouldn’t have gone |
One ought _____ for what one hasn’t done.
| A．not to be punished | B．to not be punished |
| C．to not punished | D．not be punished |
—Don’t forget to come to my birthday party tomorrow.
—_______.
| A．I don’t | B．I won’t | C．I can’t | D．I haven’t |
You can’t imagine that a well-behaved gentleman ______ be so rude to a lady.
| A．might | B．need | C．should | D．would |
It has been announced that candidates _______ remain in their seats until all the papers have been collected.
| A．can | B．will | C．may | D．shall |