Although the play had already been on for 10 minutes, I was still unable to find a seat ___________.
| A．to sit | B．for sit on | C．to sit on | D．for sitting |
So sudden ______ that the enemy had no time to escape．
| A．did the attack |
| B．the attack did |
| C．was the attack |
| D．the attack was |
Look out！Don’t get too close to the house ________ roof is under repair．
| A．which | B．whose | C．what | D．that |
I have an appointment _______ Dr．Brown，but I need to change it．
| A．to | B．off | C．with | D．from |
— I’m sorry．I ________ at you the other day．
— Forget it．I was a bit out of control myself．
| A．shouldn’t shout |
| B．shouldn’t have shouted |
| C．mustn’t shout |
| D．mustn’t have shouted |
_____ with so much trouble，we failed to complete the task on time．
| A．Faced | B．Face |
| C．Facing | D．To face |