Bob would have helped us yesterday, but he_______
| A．was busy | B．is busy | C．had been busy. | D．will be busy |
So far, several ships have been reported missing the coast of Bermuda Island.
| A．off | B．along | C．on | D．around |
the trees in that thick forest are so dose together that there is hardly any room to move them.
| A．between | B．in | C．among | D．across |
The speech by the mayor of Shanghai before the final voting for Expo 2010 is strongly impressed my memory.
| A．to | B．over | C．by | D．on |
It is raining .
| A．big | B．great | C．heavily | D．hardly |
When I went up, saw the baby awake.
| A．wide | B．completely | C．very | D．quite |