I don't think the experiment is _____ failure. At least we have got _____ experience for our
future work on _____ nature.
| A．/; /; / | B．a; /; the | C．a; /; / | D．/; the; / |
In China's countryside, villagers often have the same family name, but ________ not be closely related.
| A．need | B．shall |
| C．must | D．may |
In one's lifetime, if fortunate, one is likely to be blessed by the friendship of another person ________ existence can be a great inspiration.
| A．whose | B．which |
| C．who | D．whom |
An unemployed Iranian man threw his shoes at President Mahmoud Ahmadinejad while the leader________ a speech.
| A．delivered | B．was delivering |
| C．would deliver | D．had delivered |
The owner of the house moved to west Beijing last month, which is ________ he decides to sell this house.
| A．why | B．when |
| C．where | D．how |
A draft regulation on school bus safety management was made public by the State Council, with the public________to give comments.
| A．to invite | B．inviting |
| C．invited | D．having invited |