As there is less and less coal and oil, scientists are exploring new ways of making use of ____ energy, such as sunlight, wind and water for power and fuel.
| A．original | B．alternative | C．convenient | D．staple |
I do not feel equal to________ her the truth.
| A．tell | B．told | C．telling | D．being told |
The time he has devoted in the past 10 years________ the disabled is now considered________ of great value.
| A．to help；being | B．to helping；to be |
| C．to help；to be | D．helping；being |
If parents never expect their children to be helpful at home，they are sure________.
| A．not | B．not to | C．not to be | D．not to be that |
The boys，________ could not reach the shelf，went to look for something to stand on.
| A．the tall of whom | B．the tallest of whom |
| C．the tallest one | D．the tallest of them |
The place ________ interested me most was the Children’s Palace.
| A．which | B．where | C．what | D．in which |