– I wonder how much you charge for your services.
-- The first two are free________the third costs $30.
| A．though | B．until | C．while | D．before |
My parents used _____ they had to get a new car for my brother.
| A．what | B．which | C．all what | D．不填 |
The question came up at the meeting _____ we had not enough money to do the research.
| A．whether | B．if | C．that | D．what |
Is this hotel _____ you said we were to stay in your letter?
| A．where | B．which | C．in that | D．in which |
A modern university has been set up in ______ used to be.
| A．which | B．that | C．what | D．where |
Can you imagine that a smart man like him_____ make such a stupid mistake?
| A．might | B．should | C．would | D．need |