Not until the fish died in the river how serious the pollution was.
| A．did the villagers realize |
| B．the villagers realized |
| C．the villagers did realize |
| D．didn’t the villagers realize |
When somewhat better ________ academically, he returned home to continue his research.
| A．equipped | B．had equipped |
| C．provided | D．providing |
This new teaching approach is specially ______ to develop children’s problem-solving skills.
| A．designed | B．devoted | C．concentrated | D．hoped |
The opening ceremony of Beijing 2008 Olympics is a great success, which is believed ________ the Chinese splendid civilization.
| A．having been displayed | B．to have displayed |
| C．to be displayed | D．displaying |
A good speaker is supposed to manage to ________ the listeners what he means.
| A．make sense to | B．get across to | C．appeal to | D．attach to |
----Whose advice do you think I should take?
----________.
| A．It doesn’t matter | B．That’s it | C．It’s up to you | D．Either is OK |