33．— We should recycle everything we can．
— Absolutely．These may seem little things，but they’re not__________it comes to saving the
environment．
| A．since | B．when | C．while | D．As |
I’ve never heard the word _______ in spoken English.
| A．use | B．used | C．using | D．useing |
.The result of the test was rather _______.
| A．disappointed | B．disappointing | C．being disappointed | D．disappoint |
.There was so much noise in the room that the speaker couldn't make himself
| A．being heard | B．hearing | C．heard | D．hear |
.With the money _______ , he couldn’t buy any ticket.
| A．to lose | B．losing | C．lost | D．has lost |
The teacher came into the classroom _______ by his students.
| A．following | B．to be following | C．followed | D．having followed. |