—The experiment is of particular importance.
—I see. We will carry on with it ________ we can get enough money.
| A．unless | B．though | C．whether | D．until |
The child ought to be punished,________?
| A．shouldn’t he | B．oughtn’t the child | C．ought he | D．should he |
She must be at the railway station at 9 o’clock,________?
| A．mustn’t she | B．must she | C．ought she? | D．need she |
The car needs repairing,________?
| A．needn’t it | B．doesn’t it | C．mustn’t it | D．won’t it |
We have to finish our homework first,________?
| A．haven’t we | B．don’t we | C．mustn’t we | D．shouldn’t we |
He used to have nothing for breakfast,________?
| A．usedn’t he | B．didn’t he | C．did he | D．must he |