This new teaching approach is specially ______ to develop children’s problem-solving skills.
| A．designed | B．devoted | C．concentrated | D．hoped |
We should not ________ economic growth that will harm the environment.
| A．solve | B．promote | C．challenge | D．reduce |
---- Do you surf the Internet a lot？
---- Well,_______, I’m too busy with work to surf the Net.
| A．all right | B．I have no idea | C．at last | D．to tell you the truth |
Every possible means ________ to prevent the air pollution, but the sky is still not clear.
| A．is used | B．are used | C．has been used | D．have been used |
He felt ______ as soon as he realized that he had asked a foolish question.
| A．bored | B．displeased | C．embarrassed | D．disappointed |
All the neighbors admire this family _______ the parents are treating their child like a friend.
| A．why | B．where | C．which | D．that |