—Do you regret paying 500 dollars for your necklace?
--No, I would gladly pay__________ for it.
| A．two times as much | B．twice as many |
| C．twice as much | D．as twice as much |
It is important that he _______ placed in an appropriate job.
| A．is | B．was |
| C．be | D．were |
I would love _______ to your birthday party last night, but I had to attend an important meeting.
| A．to go | B．to have gone |
| C．going | D．having gone |
Since you have made such good preparations,there _______ be any problem about passing the coming exam.
| A．mustn’t | B．shan’t |
| C．shouldn’t | D．needn’t |
My new novel has disappeared.Who _______ have taken it?
| A．should | B．must |
| C．could | D．would |
—The winner of the race is a tall and thin boy with thick glasses.
—Then it _______ be my friend, Mike, who looks like a “meat ball”.
| A．mustn’t | B．can’t |
| C．may | D．should |