30. Chinese food always gains ____________ from people all over the world.
| A．approval | B．appreciation | C．attraction | D．Agreement |
. He made up his mind to devote his life____________the river____________polluted.
| A．to prevent, to be | B．to prevent, from being |
| C．to preventing, to be | D．to preventing, from being |
. Many people think that it is ____________making such an experiment.
| A．worthwhile | B．worth | C．worthy | D．valuable |
. One day I ____________a newspaper article about one in six European mammal species threatened with extinction.
| A．came at | B．came across | C．came about | D．came after |
. We can catch____________ sight of millions of stars in____________space.
| A．/, the | B．the, / | C．/, / | D．a , the |
Whether ways will be found to help China _______ the current world financial crisis is just _______ worries the public.
| A．prevent; that | B．survive; what | C．forbid; that | D．quit; what |