for the broken window,Jack was very unhappy.
| A．To be blamed | B． Blamed |
| C．To blame | D．Being blame |
34. Wild animals have been overhunted, and as____result, some of them are among the animals in ______ danger.
| A．a; the | B．a; 不填 | C．the; a | D．不填; the |
33. Nowadays, use____of certain waste materials to protect the environment.
| A．is making | B．will make | C．is being made | D．will be made |
32. I suggested that they set off early to avoid (避开) the traffic jam, ____________ no one responded.
| A．on which | B．to which | C．about which | D．for which |
31. How to solve the problem __________ in the meeting right now
| A．was being discussed | B．are being discussed |
| C．is being discussed | D．is going to discuss |
30. He’s making_____great progress in his lessons that everyone else in his class can’t believe it.
| A．So | B．very | C．such a | D．Such |