Some 5-star hotels specialize in mouth-watering buffet（自助餐），offering a 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 |
__________ with such a difficult problem, he decided to ask for some good advice from his colleagues.
| A．Having faced | B．Face |
| C．Faced | D．To have faced |
The leader came into the room, __________ by his two assistants.
| A．following | B．follow | C．followed | D．to follow |
__________ by the heavy rain, the area was flooded seriously.
| A．Stricken | B．Striking |
| C．To strike | D．To be stricken |
The how-to book can be of help to __________ wants to do the job.
| A．who | B．whomever |
| C．no matter who | D．whoever |
The plane crashed in a flash, __________ into pieces.
| A．breaking | B．to break |
| C．to be breaking | D．broke |