________ several years he has been working like this.
| A．In | B．After | C．For | D．Since |
Nowadays many pop stars begin to use recycled paper _________ plastic to package their photos.
| A．or rather | B．other than | C．rather than | D．more than |
Lily is said ________ abroad if his mother finds a job in the USA next year.
| A．to have studied | B．studying | C．to study | D．to be studying |
________ the question of how global warming has _________, we are doing some projects at school.
| A．Exploring, come about | B．To explore, come out |
| C．Having explored, come to | D．Being explored, come over |
Entering the room, they found that quantities of novels _________ on the desk, while a pile of illegal drugs were burned to _________ ground.
| A．Were, the | B．was, the | C．were, / | D．was, / |
If we _______ a great deal of time, we _______ be able to complete the proje
ct as you wish.
| A．don’t have, wouldn’t | B．don’t have, won’t finish |
| C．didn’t have, wouldn’t | D．had, wouldn’t |