Biology is ____
| A．science of life | B．science of the life | C．the science of the life | D．the science of life |
The result what he said would lead _____ his regret in the future.
| A．is | B．to be |
| C．to being | D．to was |
The work he paid special attention _____ to nothing.
| A．came | B．to come |
| C．to coming | D．to came |
The life he is now used _____ quite different from ours.
| A．is | B．to be |
| C．to being | D．to is |
The old house we paid a visit _____ at the top of the hill.
| A．standing | B．to stand |
| C．to standing | D．to stands |
Nothing that he suggested _____ to be of any use.
| A．prove | B．proved | C．proving | D．to prove |