After the earthquake, the president _____ a three-day period of mourning, the first-ever event of its kind for ordinary people.
| A．suffered | B．declared | C．confirmed | D．informed |
He is clever and has a for learning language.
| A．gift | B．mind | C．heart | D．skill |
The storm is moving slowly .
| A．eastern | B．to eastern | C．to eastwards | D．eastwards |
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 |