, he dialed 999.
| A．Seen the house on fire | B．To see the house on fire |
| C．Being seen the house on fire | D．Seeing the house on fire |
—What shall we do this weekend?
—_____ .Whatever you want．
| A．It's up to you | B．I couldn't agree more |
| C．No problem | D．It depends |
—Fined ￥100! You know you were driving 100 KM an hour, don't you?
—No, officer. I _____．This car doesn't do 80．
| A．shouldn't have been | B．mustn't have been |
| C．can't have been | D．mightn't have been |
Although _____of danger, tourists can't help taking photos near the cliff （悬崖） ．
| A．having warned | B．warned | C．warning | D．to be warned |
We're considering students' request ______the school cafeteria should provide more kinds of food．
| A．how | B．what | C．that | D．whether |
—Oh, doctor, The wound on my leg is infected.
—You really shouldn’t have left it _______ to the sun.
| A．discovered | B．exposed | C．opened | D．buried |