All that can be done ____.
| A．has been done | B．have been done | C．have done | D．has done |
As far as I’m concerned, education is about learning and the more you learn, ___________________.
| A．the more for life are you equipped. | B．the more equipped for the life you are |
| C．the more life you are equipped | D．you are equipped the more for life |
Allen and I are in the same history class, but her assignment differs _____________ mine.
| A．with | B．from | C．against | D．To |
We must __________ that the experiment is controlled as rigidly as possible.
| A．propose | B．secure | C．ensure | D．Issue |
The bank has _________ some property on which to constructed.
| A．paid | B．picked up | C．purchased | D．Invested |
The island in the middle of the lake _____________ the beauty of the lake.
| A．adds up to | B．adds to | C．adds up | D．adds |