Some 5-star hotels specialize in mouth-watering buffet（自助餐），offeringa rich selection of quality food. With a discount card, you can surely drink and eat to your heart’s _________.
| A．association | B．circulation |
| C．entertainment | D．content |
They arrived at a farmhouse, in front of ______sat a small boy.
| A．whom | B．who | C．which | D．that |
The pen ______he is writing is mine.
| A．with which | B．in which | C．on which | D．by which |
This is one of the best films _______.
| A．that have been shown this year | B．that have shown |
| C．that has been shown this year | D．that you talked |
Some researchers believe that there is no doubt ________ a cure for AIDS will be found.
| A．which | B．that | C．what | D．whether |
Mum is coming. What present _______ for your birthday?
| A．you expect she has got | B．you expect has she got |
| C．do you expect she has got | D．do you expect has she got |