It is believed that a new kind of drug _____ by the scientists and they are hopeful that they will succeed in a few months．
| A．has been developed | B．is being developed |
| C．is developing | D．has developed |
Some people find the film Avatar difficult______.
| A．to understand | B．to be understood | C．understood | D．being understood |
This maths problem isthat one．
| A．not so easy as | B．more easy than | C．as easier as | D．easy than |
. Who could have ____ that within 10 years he’d be in charge of the whole company
| A．indicated | B．promised | C．supported | D．predicted |
He made clear to his workmates that he would leave the company.
| A．it | B．that | C．them | D．this |
According to recent report, one of the rare animals, crocodile, will be in anger of dying out in 2020s
| A．a, / | B．/, the | C．the, / | D．the, the |