（2013·北京卷)When we saw the road with snow, we decided to spend the holiday at home.
| A．block | B．to block | C．blocking | D．blocked |
33．— Shall I go and buy more food and drinks for the party?
— No, we have prepared a fridge of those. That ______ be quite enough.
| A．can | B．may | C．might | D．Should |
32．The glass doors have taken the place of the wooden ones at the entrance, ______ in the natural light during the day.
| A．to let | B．letting | C．let | D．having let |
31．— How do you find your new classmates?
— Most of them are kind, but ______ is so good to me as Bruce.
| A．none | B．no one | C．every one | D．some one |
30．______ the news that her son was still alive, tears rolled down the old woman’s face.
| A．Hearing | B．heard | C．Having heard | D．When she heard |
29．It will lead to very serious result if this matter was ______ unsolved.
| A．stayed | B．remained | C．left | D．Keeping |