________ with care, one tin will last for six weeks.
| A．Use | B．Using |
| C．Used | D．To use |
We are working to raise money for the local homeless shelters. _______ , we are collecting clothing to offer those in need.
| A．For one thing | B．Moreover | C．As a result | D．In the end |
The __________ conclusion is not a set one. It still needs further testing.
| A．tentative | B．basic | C．bare | D．systematic |
People are _________the use of alternative energy sources. Because the fossil fuels _________will be used sooner or later.
| A．pushing for/ consumed | B．struggling for /being consumed |
| C．pushing for/ being consumed | D．preferring /being used |
Now young people ___________to use computer to develop their ___________skills.
| A．are trained/ problem solving | B．are being trained/ solving problem |
| C．are being taught/ problem solving | D．are taught/ solving problem |
The future of developing countries__________ the hands of children, which is __________education and training for young people is important.
| A．lies in/why | B．is put/ because | C．is laid/ the reason | D．depends on/why |