It was a pity that the great scientist died his research unfinished.
| A．for | B．with | C．from | D．of |
Burning all the lights in the classroom will be a great______ on electric power.
| A．waste | B．lack | C．drain | D．damage |
If you build a house with good_______ , it will last long.
| A．foundation | B．floor | C．basis | D．ground |
After many years’ waiting, Chinese people______ realized their dream to hold the Olympic Games.
| A．constantly | B．eventually | C．lastly | D．generally |
He had a talent for music and was______ conductor of Shanghai Symphony Orchestra at the age of 30.
| A．assigned | B．appointed | C．named | D．honored |
David paused to consult his notes, then_______ with his speech.
| A．proceeded | B．pursed | C．pronounced | D．proposed |